mkdir -p /home/daytona/workspace/hiv-pptct-presentation

~/hiv-pptct-presentation/build.js

const pptxgen = require("pptxgenjs");

const pres = new pptxgen();
pres.layout = "LAYOUT_16x9";
pres.author = "K Park - Preventive & Social Medicine";
pres.title = "Prevention of Parent-to-Child Transmission & Targeted Interventions";

// ─────────────────────────────────────────────────────────
// COLOR PALETTE  (medical-red + deep navy + clean white)
// ─────────────────────────────────────────────────────────
const C = {
  navy:    "0D2137",
  navyMid: "13304F",
  red:     "C0392B",
  redDark: "922B21",
  gold:    "F0A500",
  white:   "FFFFFF",
  offWhite:"F4F6F8",
  lightGray:"D5DBE5",
  textDark:"1A2B3C",
  accent:  "1ABC9C",
  accentB: "2980B9",
};

// ─────────────────────────────────────────────────────────
// HELPERS
// ─────────────────────────────────────────────────────────
function sectionBg(slide) {
  slide.addShape(pres.ShapeType.rect, { x:0, y:0, w:"100%", h:"100%", fill:{color:C.navy} });
}
function contentBg(slide) {
  slide.addShape(pres.ShapeType.rect, { x:0, y:0, w:"100%", h:"100%", fill:{color:C.offWhite} });
}
function addHeader(slide, title, color) {
  // dark bar at top
  slide.addShape(pres.ShapeType.rect, { x:0, y:0, w:"100%", h:1.05, fill:{color: color || C.navyMid} });
  // red accent line
  slide.addShape(pres.ShapeType.rect, { x:0, y:1.05, w:"100%", h:0.07, fill:{color:C.red} });
  slide.addText(title, {
    x:0.35, y:0.1, w:9.3, h:0.85,
    fontSize:22, bold:true, color:C.white, valign:"middle",
    fontFace:"Calibri", margin:0,
  });
}
function addFooter(slide, src) {
  slide.addShape(pres.ShapeType.rect, { x:0, y:5.35, w:"100%", h:0.275, fill:{color:C.navyMid} });
  slide.addText(src || "Source: Park's Textbook of Preventive & Social Medicine", {
    x:0.3, y:5.36, w:9.4, h:0.24, fontSize:8.5, color:C.lightGray, italic:true, fontFace:"Calibri",
  });
}
function bullet(text, sub, indent) {
  return {
    text: text,
    options: {
      bullet: sub ? { indent: (indent||0) + 20 } : { indent: 0 },
      breakLine: true,
      fontSize: sub ? 13.5 : 15,
      bold: !sub,
      color: sub ? C.textDark : C.navy,
      indentLevel: sub ? 1 : 0,
    }
  };
}
function subBullet(text) {
  return {
    text: "\u2022 " + text,
    options: { breakLine: true, fontSize: 13.5, color: C.textDark, indentLevel: 1 }
  };
}
function tagBox(slide, text, x, y, w, h, bg, fg) {
  slide.addShape(pres.ShapeType.roundRect, { x, y, w, h, fill:{color: bg||C.red}, line:{color:"FFFFFF",width:0}, rectRadius:0.1 });
  slide.addText(text, { x, y, w, h, fontSize:12.5, bold:true, color:fg||C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });
}
function infoBox(slide, title, items, x, y, w, h, hColor) {
  slide.addShape(pres.ShapeType.rect, { x, y, w, h, fill:{color:hColor||C.navyMid}, line:{color:"FFFFFF",width:0} });
  slide.addShape(pres.ShapeType.rect, { x, y:y+0.38, w, h:h-0.38, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
  slide.addText(title, { x:x+0.1, y:y+0.04, w:w-0.2, h:0.33, fontSize:12, bold:true, color:C.white, fontFace:"Calibri", margin:0 });
  const rows = items.map(i => ({ text: i, options: { bullet: {indent:8}, breakLine:true, fontSize:12, color:C.textDark } }));
  slide.addText(rows, { x:x+0.12, y:y+0.44, w:w-0.22, h:h-0.54, fontSize:12, fontFace:"Calibri", valign:"top" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 1 – TITLE
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  sectionBg(s);
  // big ribbon at centre
  s.addShape(pres.ShapeType.rect, { x:0, y:1.8, w:"100%", h:2.3, fill:{color:C.navyMid} });
  s.addShape(pres.ShapeType.rect, { x:0, y:1.8, w:0.22, h:2.3, fill:{color:C.red} });
  s.addShape(pres.ShapeType.rect, { x:0, y:4.1, w:"100%", h:0.06, fill:{color:C.gold} });

  s.addText("Prevention of Parent-to-Child\nTransmission (PPTCT) &\nTargeted Interventions", {
    x:0.5, y:1.9, w:9, h:2.05,
    fontSize:28, bold:true, color:C.white, align:"left", valign:"middle",
    fontFace:"Calibri", lineSpacingMultiple:1.2,
  });

  s.addText("PPTCT Services  •  Early Infant Diagnosis (EID)  •  HIV & Pregnancy\nTargeted Interventions  •  Key Populations  •  Bridge Population  •  HIV Sentinel Surveillance", {
    x:0.5, y:4.22, w:9.2, h:0.75,
    fontSize:12, color:C.lightGray, align:"left", fontFace:"Calibri",
  });
  s.addText("Based on: Park's Textbook of Preventive & Social Medicine", {
    x:0.5, y:5.18, w:9, h:0.35, fontSize:10, color:C.gold, bold:true, align:"left", fontFace:"Calibri",
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 2 – CONTENTS / AGENDA
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Contents at a Glance");
  addFooter(s);

  const topics = [
    ["01", "HIV Transmission & Magnitude", C.red],
    ["02", "Key Populations in India", C.accentB],
    ["03", "PPTCT Programme – Overview", C.navyMid],
    ["04", "PPTCT – Essential Service Package", C.navyMid],
    ["05", "HIV & Pregnancy – Mother-to-Child Transmission", C.redDark],
    ["06", "Early Infant Diagnosis (EID)", C.accent],
    ["07", "Targeted Interventions (TI) – Framework", C.gold],
    ["08", "Key Populations: FSW, MSM, TG, PWID", C.red],
    ["09", "Bridge Populations: Migrants & Truckers", C.accentB],
    ["10", "HIV Sentinel Surveillance – Types & Protocol", C.navyMid],
    ["11", "Country Scenario & District Categorisation", C.navyMid],
    ["12", "90-90-90 & NACP Milestones", C.accent],
  ];

  const colW = 4.55;
  topics.forEach((t, i) => {
    const col = i % 2;
    const row = Math.floor(i / 2);
    const x = 0.25 + col * 4.85;
    const y = 1.2 + row * 0.78;
    s.addShape(pres.ShapeType.rect, { x, y, w:colW, h:0.62, fill:{color:t[2]}, line:{color:"FFFFFF",width:0} });
    s.addShape(pres.ShapeType.rect, { x:x+0.55, y, w:colW-0.55, h:0.62, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
    s.addText(t[0], { x, y, w:0.55, h:0.62, fontSize:14, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });
    s.addText(t[1], { x:x+0.62, y, w:colW-0.65, h:0.62, fontSize:12, color:C.textDark, valign:"middle", fontFace:"Calibri", margin:4 });
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 3 – TRANSMISSION & MAGNITUDE
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "HIV Transmission & Magnitude in India");
  addFooter(s);

  infoBox(s, "Routes of HIV Transmission (India 2017)",
    ["Sexual transmission – 86% of new infections", "Parent-to-child (Vertical) transmission", "Injecting drug users (IDU)", "Homosexual contacts (MSM)", "Blood and blood products"],
    0.25, 1.2, 4.6, 2.0, C.red);

  infoBox(s, "Magnitude",
    ["HIV prevalence among ANC attendees: 0.29% (2016–17)", "Overall declining trend nationally", "India shows a concentrated epidemic", "58.96 thousand AIDS-related deaths in 2019", "Andhra Pradesh: highest AIDS deaths (11.43 thousand in 2019)"],
    5.15, 1.2, 4.6, 2.0, C.navyMid);

  infoBox(s, "Mother-to-Child Transmission",
    ["Without intervention: 20–25% transmission rate", "Peripartum period: accounts for 1/3 to 2/3 of infections", "Risk is higher if mother is newly infected or has AIDS", "With ART + PMTCT: rate drops below 2% in developed countries", "Triple drug combination has shown substantial efficacy"],
    0.25, 3.4, 9.5, 1.85, C.accent);
}

// ─────────────────────────────────────────────────────────
// SLIDE 4 – KEY POPULATIONS
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Key Populations in India – HIV Burden");
  addFooter(s);

  const boxes = [
    { title:"Female Sex Workers (FSW)", color:C.red, items:["Prevalence: 1.6% nationally (2017)","Maharashtra: 7.4%, Andhra Pradesh: 6.3%","67% HIV+ FSW aware of their status","91% reported condom use","NACO reached 77.4% with prevention activities (2015)"] },
    { title:"People Who Inject Drugs (PWID / IDU)", color:C.accentB, items:["1.7 million IDU estimated in India (2016)","National prevalence: 6.3% (2017)","Only ~50% aware of their HIV status","Manipur: 12.1%, Mizoram: 10%, Nagaland: 3.2%","Women IDU: 3× higher prevalence than men (2015 study)"] },
    { title:"Hijras / Transgender (TG)", color:C.accent, items:["Prevalence: 3.1% (2017) – 2nd highest among key populations","~68% HIV+ TG persons aware of status","Only ~45% receiving targeted interventions (2017)","Stigma and discrimination restrict healthcare access"] },
    { title:"Men who have Sex with Men (MSM)", color:C.navyMid, items:["Homosexual transmission is a recognized route","Stigma leads to underreporting and limited access","Included in targeted intervention (TI) projects under NACP","High-risk behavior due to unprotected anal intercourse"] },
  ];

  boxes.forEach((b, i) => {
    const x = i < 2 ? 0.25 : 5.15;
    const y = i % 2 === 0 ? 1.2 : 3.42;
    infoBox(s, b.title, b.items, x, y, 4.6, 2.05, b.color);
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 5 – PPTCT PROGRAMME OVERVIEW
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "PPTCT Programme – Overview");
  addFooter(s);

  // timeline strip
  const milestones = [
    { y:"2002", e:"PPTCT launched; SD-NVP prophylaxis", c:C.red },
    { y:"2010", e:"WHO Option B adopted; multi-drug ARV prophylaxis", c:C.accentB },
    { y:"2012", e:"Multi-drug ARV piloted in AP, Karnataka, Tamil Nadu", c:C.accent },
    { y:"2013", e:"Lifelong ART for all pregnant & breastfeeding women (Option B+)", c:C.navyMid },
  ];

  milestones.forEach((m, i) => {
    const x = 0.25 + i * 2.4;
    s.addShape(pres.ShapeType.rect, { x, y:1.2, w:2.2, h:0.38, fill:{color:m.c} });
    s.addText(m.y, { x, y:1.2, w:2.2, h:0.38, fontSize:14, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });
    s.addShape(pres.ShapeType.rect, { x:x+0.9, y:1.58, w:0.04, h:0.3, fill:{color:m.c} });
    s.addShape(pres.ShapeType.rect, { x, y:1.88, w:2.2, h:2.05, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
    s.addText(m.e, { x:x+0.1, y:1.93, w:2.0, h:1.9, fontSize:11.5, color:C.textDark, fontFace:"Calibri", valign:"top" });
  });

  // Key goal box at bottom
  s.addShape(pres.ShapeType.rect, { x:0.25, y:4.12, w:9.5, h:0.96, fill:{color:C.navyMid} });
  s.addText([
    { text: "Key Goal: ", options: { bold:true, color:C.gold } },
    { text: "Universal HIV testing of every pregnant woman with 'opt-out' option + Integrated PPTCT delivery within RCH programme. Currently >15,000 ICTCs offer PPTCT services.", options: { color:C.white } }
  ], { x:0.45, y:4.17, w:9.2, h:0.86, fontSize:13, fontFace:"Calibri", valign:"middle" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 6 – PPTCT ESSENTIAL SERVICE PACKAGE
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "PPTCT – Essential Service Package (11-Point Package)");
  addFooter(s);

  const items = [
    "1. Routine HIV counselling & testing to ALL pregnant women enrolled in ANC with 'opt-out' option",
    "2. Spouse & family involvement → shift from ANC-centric to FAMILY-CENTRIC approach",
    "3. Lifelong ART (TDF + 3TC + EFV) for all HIV+ pregnant & breastfeeding women regardless of CD4 count",
    "4. Promotion of INSTITUTIONAL DELIVERIES for HIV infected pregnant women",
    "5. Care for associated conditions: STI/RTI, TB and opportunistic infections",
    "6. Nutrition counselling & psychosocial support for HIV+ pregnant women",
    "7. Safe delivery practices to minimise HIV exposure of the newborn",
    "8. Counselling on infant feeding: promotion of exclusive breastfeeding with continued ART",
    "9. Co-trimoxazole Preventive Therapy (CPT) for HIV exposed infants",
    "10. Early Infant Diagnosis (EID) using HIV-DNA PCR at 6 weeks of age onwards",
    "11. Community follow-up & outreach through local networks to support HIV+ pregnant women & families",
  ];

  const half = 6;
  const leftItems = items.slice(0, half);
  const rightItems = items.slice(half);

  s.addShape(pres.ShapeType.rect, { x:0.25, y:1.2, w:4.6, h:3.85, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
  s.addShape(pres.ShapeType.rect, { x:5.15, y:1.2, w:4.6, h:3.85, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });

  s.addText(leftItems.map(i => ({ text:i, options:{ bullet:{indent:8}, breakLine:true, fontSize:11.5, color:C.textDark } })),
    { x:0.35, y:1.27, w:4.4, h:3.7, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.15 });
  s.addText(rightItems.map(i => ({ text:i, options:{ bullet:{indent:8}, breakLine:true, fontSize:11.5, color:C.textDark } })),
    { x:5.25, y:1.27, w:4.4, h:3.7, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.15 });

  // vertical divider
  s.addShape(pres.ShapeType.rect, { x:4.87, y:1.2, w:0.26, h:3.85, fill:{color:C.red} });
}

// ─────────────────────────────────────────────────────────
// SLIDE 7 – HIV & PREGNANCY
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "HIV & Pregnancy – Mother-to-Child Transmission");
  addFooter(s);

  // 3 columns
  const cols = [
    { title:"Routes of Transmission", col:C.red, items:[
      "Transplacental (in utero)",
      "During labour & delivery (peripartum)",
      "Through breast milk (postnatal)",
      "Peripartum: 1/3 to 2/3 of total MTCT",
      "Breast milk adds significantly in resource-poor settings",
    ]},
    { title:"Risk Factors for Higher MTCT", col:C.accentB, items:[
      "Newly acquired infection in mother",
      "Advanced AIDS in mother",
      "High viral load at delivery",
      "Prolonged rupture of membranes",
      "Preterm delivery",
      "Invasive procedures during delivery",
      "Breast-feeding duration",
    ]},
    { title:"Prevention Strategies", col:C.accent, items:[
      "ARV prophylaxis / lifelong ART",
      "Elective C-section before labour onset & membrane rupture",
      "Refrain from breastfeeding (where safe substitute available)",
      "In poor countries: ART + safe breastfeeding counselling",
      "Rate reduced to <2% with triple drug combination (no breastfeeding)",
    ]},
  ];

  cols.forEach((c, i) => {
    const x = 0.25 + i * 3.28;
    s.addShape(pres.ShapeType.rect, { x, y:1.2, w:3.1, h:0.38, fill:{color:c.col} });
    s.addText(c.title, { x, y:1.2, w:3.1, h:0.38, fontSize:12, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });
    s.addShape(pres.ShapeType.rect, { x, y:1.58, w:3.1, h:3.65, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
    s.addText(c.items.map(it => ({ text:it, options:{ bullet:{indent:8}, breakLine:true, fontSize:12, color:C.textDark } })),
      { x:x+0.1, y:1.65, w:2.9, h:3.5, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.2 });
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 8 – EARLY INFANT DIAGNOSIS (EID)
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Early Infant Diagnosis (EID) of HIV");
  addFooter(s);

  infoBox(s, "What is EID?",
    ["Diagnosis of HIV in HIV-exposed infants below 18 months of age",
     "Standard antibody tests are UNRELIABLE in infants <18 months (maternal antibodies persist)",
     "EID uses virological test: HIV-DNA PCR (Polymerase Chain Reaction)",
     "Test is done from 6 weeks of age onwards as per EID guidelines"],
    0.25, 1.2, 4.6, 2.1, C.navyMid);

  infoBox(s, "Why EID Matters",
    ["HIV infected infants and children progress rapidly to AIDS",
     "Early diagnosis enables early initiation of ART in infants",
     "Reduces infant morbidity and mortality",
     "Allows timely Co-trimoxazole Preventive Therapy (CPT)",
     "Critical component of eliminating paediatric HIV"],
    5.15, 1.2, 4.6, 2.1, C.red);

  infoBox(s, "EID Protocol Under NACP",
    ["EID is integrated into the PPTCT service package (Point 10 of 11-point package)",
     "Linked to the PPTCT programme at all ICTCs",
     "Samples collected as Dried Blood Spot (DBS) for PCR testing",
     "Testing at Early Infant Diagnosis Laboratories across states",
     "HIV exposed infant also given Nevirapine syrup prophylaxis at birth",
     "Co-trimoxazole (CPT) started at 6 weeks regardless of EID result, continued till HIV excluded",
     "Paediatric ART services available for HIV+ children at ART centres"],
    0.25, 3.45, 9.5, 1.8, C.accent);
}

// ─────────────────────────────────────────────────────────
// SLIDE 9 – TARGETED INTERVENTIONS FRAMEWORK
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Targeted Interventions (TI) – Framework & Rationale");
  addFooter(s);

  // NACO structure mention
  s.addShape(pres.ShapeType.rect, { x:0.25, y:1.18, w:9.5, h:0.72, fill:{color:C.navyMid} });
  s.addText([
    { text:"NACO Division: ", options:{ bold:true, color:C.gold } },
    { text:"Under NACO's structure, 'Targeted Intervention and LWS (Link Worker Scheme)' is a dedicated division focused on reducing HIV transmission among high-risk and bridge populations.", options:{ color:C.white } }
  ], { x:0.4, y:1.22, w:9.2, h:0.64, fontSize:12.5, fontFace:"Calibri", valign:"middle" });

  // definition boxes
  infoBox(s, "What are Targeted Interventions (TI)?",
    ["Area-specific strategies for HIV prevention among concentrated groups",
     "Focuses on high-risk groups (HRG): FSW, MSM, TG, PWID",
     "Includes bridge populations: Migrants, Truckers (LDT - Long Distance Truckers)",
     "Implemented through NGOs, community-based organisations (CBOs)",
     "TI projects serve as Sentinel sites for HIV Sentinel Surveillance"],
    0.25, 2.06, 4.6, 2.2, C.red);

  infoBox(s, "Core Services under TI",
    ["Outreach and peer education",
     "Condom promotion and distribution",
     "STI/RTI screening and treatment",
     "HIV counselling and testing linkage",
     "Needle and syringe exchange (for PWID)",
     "Opioid substitution therapy (for PWID)",
     "Behaviour change communication (BCC)",
     "Linkage to ART and care services"],
    5.15, 2.06, 4.6, 2.2, C.accentB);

  infoBox(s, "District Categorisation (A/B/C/D) – Determines TI Priority",
    ["Cat A: >1% ANC/PPTCT prevalence at any site in last 3 years  |  Cat B: <1% ANC but >5% any HRG (STD/FSW/MSM/IDU)  |  Cat C: <1% ANC & <5% STD/HRG but known hot spots (migrants, truckers, factory workers)  |  Cat D: <1% ANC & <5% all HRG OR poor data with no known hot spots"],
    0.25, 4.4, 9.5, 0.85, C.navyMid);
}

// ─────────────────────────────────────────────────────────
// SLIDE 10 – KEY POPULATIONS (FSW, MSM, TG, PWID)
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Key Populations – Detailed Profile");
  addFooter(s);

  // 4 cards
  const cards = [
    { title:"Female Sex Workers (FSW)", color:C.red, stats:"Prevalence: 1.6% nationally; MH: 7.4%, AP: 6.3%",
      points:"Stigma & discrimination restrict healthcare access\n91% condom use reported\n67% HIV+ FSW aware of status\nNACO reached 77.4% with prevention (2015)" },
    { title:"Men who have Sex with Men (MSM)", color:C.accentB, stats:"Significant risk due to unprotected anal intercourse",
      points:"Socially and legally marginalized → underreporting\nHIV sentinel surveillance conducted at TI project sites\nSample size: 250 per site per round\nBCC, condom promotion, STI treatment key TI components" },
    { title:"Transgender / Hijras (TG)", color:C.accent, stats:"Prevalence: 3.1% – 2nd highest among key populations",
      points:"68% HIV+ TG aware of status\nOnly 45% receiving TIs in 2017\nFace discrimination in health system and society\nCondom use and peer-led outreach are primary interventions" },
    { title:"People Who Inject Drugs (PWID/IDU)", color:C.navyMid, stats:"Prevalence: 6.3%; 1.7 million IDUs estimated (2016)",
      points:"Major route in North-East India (Manipur, Mizoram, Nagaland)\nSharing needles: major transmission driver\nNeedle syringe exchange programmes (NSP)\nOpioid substitution therapy (OST) – Buprenorphine\nGrowing numbers despite prevention efforts" },
  ];

  cards.forEach((c, i) => {
    const x = i < 2 ? 0.25 : 5.15;
    const y = i % 2 === 0 ? 1.18 : 3.38;
    s.addShape(pres.ShapeType.rect, { x, y, w:4.6, h:2.1, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
    s.addShape(pres.ShapeType.rect, { x, y, w:4.6, h:0.37, fill:{color:c.color} });
    s.addText(c.title, { x:x+0.1, y, w:4.4, h:0.37, fontSize:12.5, bold:true, color:C.white, valign:"middle", fontFace:"Calibri", margin:0 });
    s.addText(c.stats, { x:x+0.12, y:y+0.39, w:4.36, h:0.3, fontSize:11, bold:true, color:c.color, fontFace:"Calibri" });
    s.addText(c.points.split("\n").map(p => ({ text:p, options:{ bullet:{indent:6}, breakLine:true, fontSize:11, color:C.textDark } })),
      { x:x+0.12, y:y+0.68, w:4.36, h:1.35, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.15 });
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 11 – BRIDGE POPULATIONS
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Bridge Populations – Migrants & Truckers");
  addFooter(s);

  s.addShape(pres.ShapeType.rect, { x:0.25, y:1.18, w:9.5, h:0.58, fill:{color:C.navyMid} });
  s.addText([
    { text:"Definition: ", options:{ bold:true, color:C.gold } },
    { text:"NACO categorizes migrants and truckers as 'Bridge Populations' – they form links between urban/rural areas and between high-risk and low-risk groups, serving as a bridge for HIV transmission into the general population.", options:{ color:C.white } }
  ], { x:0.4, y:1.2, w:9.2, h:0.54, fontSize:12, fontFace:"Calibri", valign:"middle" });

  infoBox(s, "Migrant Workers",
    ["Estimated 7.2 million migrant workers in India",
     "HIV prevalence: 0.2% (living with HIV)",
     "HIV testing among migrants: only 11.32% in 2016 (very low)",
     "75% of women testing HIV+ in India had a migrant labourer husband (UNAIDS 2014)",
     "HIV prevalence among wives of migrant workers in rural northern India: 0.59%",
     "Only 15.5% of migrant workers' wives had heard of HIV",
     "Impoverished, mobile, and vulnerable youth are especially at risk",
     "Categorized as 'Single Male Migrants (SMM)' in sentinel surveillance"],
    0.25, 1.9, 4.6, 2.85, C.accentB);

  infoBox(s, "Truck Drivers (Long Distance Truckers – LDT)",
    ["NACO estimates: 0.2% of truck drivers living with HIV (2017–18)",
     "Categorized as bridge population because they have sex with FSW and then with regular partners",
     "49% of truckers in central India reported paying for sex (2015 study)",
     "21.5% of those had an STI",
     "HIV testing among truck drivers: only 21.74% in 2016 (low coverage)",
     "Trucker intervention sites used as sentinel sites in HIV Sentinel Surveillance",
     "HIV sentinel surveillance: SMM and LDT tested at STD clinics and TI project sites"],
    5.15, 1.9, 4.6, 2.85, C.red);

  s.addShape(pres.ShapeType.rect, { x:0.25, y:4.88, w:9.5, h:0.62, fill:{color:C.accent} });
  s.addText("⚠  Despite being important drivers of the HIV epidemic, data on migrant and trucker sexual behaviour remains limited. Interventions include behaviour change communication, condom promotion, STI treatment, and HIV testing linkage.",
    { x:0.35, y:4.9, w:9.3, h:0.58, fontSize:11.5, color:C.white, fontFace:"Calibri", valign:"middle" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 12 – HIV SENTINEL SURVEILLANCE – TYPES
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "HIV Surveillance – Types & Objectives");
  addFooter(s);

  // Types row
  const types = [
    { name:"HIV Sentinel\nSurveillance", color:C.red },
    { name:"HIV Sero-\nSurveillance", color:C.accentB },
    { name:"AIDS Case\nSurveillance", color:C.accent },
    { name:"STD\nSurveillance", color:C.navyMid },
    { name:"Behavioural\nSurveillance", color:C.gold },
    { name:"Integration with\nother diseases (TB)", color:C.redDark },
  ];
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    const x = 0.25 + i * 1.6;
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  });

  // Objectives
  s.addShape(pres.ShapeType.rect, { x:0.25, y:2.02, w:9.5, h:0.35, fill:{color:C.navyMid} });
  s.addText("OBJECTIVES of HIV Sentinel Surveillance", { x:0.35, y:2.04, w:9.3, h:0.31, fontSize:13, bold:true, color:C.white, fontFace:"Calibri", valign:"middle" });

  const objs = [
    "1. To determine the level of HIV infection among general population as well as high-risk groups in different states",
    "2. To understand the trends of HIV epidemic among general population and high-risk groups across states",
    "3. To understand the geographical spread of HIV infection and identify emerging pockets",
    "4. To provide information for prioritization of programme resources and evaluation of programme impact",
    "5. To estimate HIV prevalence and overall HIV burden in the country",
  ];
  s.addText(objs.map(o => ({ text:o, options:{ bullet:{indent:5}, breakLine:true, fontSize:12.5, color:C.textDark } })),
    { x:0.35, y:2.44, w:9.3, h:2.02, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.25 });

  s.addShape(pres.ShapeType.rect, { x:0.25, y:4.58, w:9.5, h:0.75, fill:{color:C.accent} });
  s.addText([
    { text:"Method: ", options:{ bold:true, color:C.gold } },
    { text:"Annual cross-sectional survey of risk groups at the same place over several years using UNLINKED ANONYMOUS SEROLOGICAL TESTING (Two ERS) – HIV testing conducted WITHOUT identification of sample source (e.g., VDRL samples in STD clinics).", options:{ color:C.white } }
  ], { x:0.4, y:4.61, w:9.2, h:0.7, fontSize:12, fontFace:"Calibri", valign:"middle" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 13 – SENTINEL SURVEILLANCE PROTOCOL / TABLE 7
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "HIV Sentinel Surveillance – Protocol (Round 2016–17)");
  addFooter(s);

  const rows = [
    ["Parameter", "High Risk Groups\n(IDU/MSM/FSW/TG)", "Bridge Population\n(SMM/LDT)", "General Population\n(Pregnant women - ANC)"],
    ["Sentinel Site", "TI project sites", "STD clinic / TI projects", "Antenatal clinic"],
    ["Sample Size", "250", "250", "400"],
    ["Duration", "3 months", "3 months", "3 months"],
    ["Frequency", "Once in 2 years", "Once in 2 years", "Once in 2 years"],
    ["Sampling Method", "Consecutive / Random", "Consecutive", "Consecutive"],
    ["Age Group", "15–49 years", "15–49 years", "15–49 years"],
    ["Testing Strategy", "Unlinked anonymous\nwith informed consent", "Unlinked anonymous (STD)\nWith consent (TI sites)", "Unlinked anonymous"],
    ["Blood Specimen", "Dried Blood Spot (DBS)", "Serum (STD) / DBS (TI)", "Serum"],
    ["Testing Protocol", "Two test protocol", "Two test protocol", "Two test protocol"],
  ];

  const colWidths = [2.0, 2.5, 2.5, 2.5];
  const headerBg = [C.navyMid, C.red, C.accentB, C.accent];
  rows.forEach((row, ri) => {
    row.forEach((cell, ci) => {
      const x = 0.25 + colWidths.slice(0,ci).reduce((a,b)=>a+b,0);
      const y = 1.2 + ri * 0.405;
      const bg = ri === 0 ? headerBg[ci] : (ri % 2 === 0 ? "EBF0F5" : C.white);
      const textCol = ri === 0 ? C.white : C.textDark;
      const bold = ri === 0 || ci === 0;
      s.addShape(pres.ShapeType.rect, { x, y, w:colWidths[ci], h:0.4, fill:{color:bg}, line:{color:C.lightGray,width:0.5} });
      s.addText(cell, { x:x+0.05, y, w:colWidths[ci]-0.1, h:0.4, fontSize:10, color:textCol, bold:bold, fontFace:"Calibri", valign:"middle", align:"center" });
    });
  });

  s.addText("SMM – Single Male Migrants   |   LDT – Long Distance Truckers   |   DBS – Dried Blood Spot   |   ANC – Antenatal Clinic",
    { x:0.25, y:5.25, w:9.5, h:0.2, fontSize:9, color:C.navyMid, italic:true, fontFace:"Calibri", align:"center" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 14 – COUNTRY SCENARIO
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Country Scenario – State Classification by HIV Burden");
  addFooter(s);

  const groups = [
    { label:"Group I – HIGH PREVALENCE States", color:C.red,
      desc:"HIV has crossed 5% mark in high-risk group AND ≥1% in antenatal women",
      states:"Maharashtra, Tamil Nadu, Karnataka, Andhra Pradesh, Manipur, Nagaland" },
    { label:"Group II – MODERATE PREVALENCE States", color:C.gold,
      desc:"HIV ≥5% among high-risk groups BUT below 1% in antenatal women",
      states:"Gujarat, Goa, Puducherry" },
    { label:"Group III – LOW PREVALENCE States", color:C.accent,
      desc:"HIV still <5% in any high-risk group AND <1% among antenatal women",
      states:"Remaining states and UTs" },
  ];

  groups.forEach((g, i) => {
    const y = 1.2 + i * 1.35;
    s.addShape(pres.ShapeType.rect, { x:0.25, y, w:9.5, h:1.25, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
    s.addShape(pres.ShapeType.rect, { x:0.25, y, w:0.22, h:1.25, fill:{color:g.color} });
    s.addText(g.label, { x:0.6, y:y+0.05, w:9.0, h:0.38, fontSize:14, bold:true, color:g.color, fontFace:"Calibri" });
    s.addText([
      { text:"Criteria: ", options:{ bold:true, color:C.navy } },
      { text:g.desc, options:{ color:C.textDark } }
    ], { x:0.6, y:y+0.4, w:9.0, h:0.3, fontSize:12, fontFace:"Calibri" });
    s.addText([
      { text:"States: ", options:{ bold:true, color:C.navy } },
      { text:g.states, options:{ color:C.textDark } }
    ], { x:0.6, y:y+0.72, w:9.0, h:0.3, fontSize:12, fontFace:"Calibri" });
  });

  s.addShape(pres.ShapeType.rect, { x:0.25, y:5.25, w:9.5, h:0.18, fill:{color:C.navyMid} });
  s.addText("Classification based on HIV Sentinel Surveillance data", { x:0.35, y:5.26, w:9.3, h:0.16, fontSize:9.5, color:C.white, fontFace:"Calibri", italic:true });
}

// ─────────────────────────────────────────────────────────
// SLIDE 15 – NACP MILESTONES & 90-90-90
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "NACP Milestones & 90-90-90 Fast Track Targets");
  addFooter(s);

  // milestones list
  const ms = [
    "1986 – First HIV case detected; AIDS Task Force (ICMR); National AIDS Committee established",
    "1990 – Medium Term Plan launched for 4 states + 4 metros",
    "1992 – NACP-I launched to slow spread of HIV; National AIDS Control Board; NACO set up",
    "1999 – NACP-II: Behaviour change, decentralization, NGO involvement; SACS established",
    "2002 – PPTCT launched; National AIDS Control Policy adopted; National Blood Policy adopted",
    "2004 – ART initiated; 2006 – National Council on AIDS under PM; Paediatric ART policy",
    "2007 – NACP-III (5 years); 2014 – NACP-IV (2012–2017); 2017 – NSP for HIV/AIDS & STIs 2017–2024",
  ];

  s.addShape(pres.ShapeType.rect, { x:0.25, y:1.18, w:5.8, h:3.65, fill:{color:"EBF0F5"}, line:{color:C.lightGray,width:1} });
  s.addShape(pres.ShapeType.rect, { x:0.25, y:1.18, w:5.8, h:0.35, fill:{color:C.navyMid} });
  s.addText("Programme Milestones", { x:0.35, y:1.2, w:5.6, h:0.31, fontSize:12.5, bold:true, color:C.white, fontFace:"Calibri", valign:"middle" });
  s.addText(ms.map(m => ({ text:m, options:{ bullet:{indent:6}, breakLine:true, fontSize:11, color:C.textDark } })),
    { x:0.35, y:1.58, w:5.6, h:3.2, fontFace:"Calibri", valign:"top", lineSpacingMultiple:1.2 });

  // 90-90-90 boxes
  s.addShape(pres.ShapeType.rect, { x:6.35, y:1.18, w:3.4, h:0.35, fill:{color:C.red} });
  s.addText("90-90-90 Fast Track Targets", { x:6.35, y:1.18, w:3.4, h:0.35, fontSize:12, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });

  const boxes90 = [
    { n:"90%", desc:"PLHIV know\ntheir status", c:C.red },
    { n:"90%", desc:"of those on\nART", c:C.accentB },
    { n:"90%", desc:"of those with\nviral suppression", c:C.accent },
  ];
  boxes90.forEach((b, i) => {
    const y = 1.62 + i * 0.98;
    s.addShape(pres.ShapeType.roundRect, { x:6.35, y, w:3.4, h:0.88, fill:{color:b.c}, rectRadius:0.1 });
    s.addText(b.n, { x:6.35, y:y+0.04, w:1.0, h:0.8, fontSize:26, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri", margin:0 });
    s.addText(b.desc, { x:7.35, y:y+0.04, w:2.3, h:0.8, fontSize:13, color:C.white, valign:"middle", fontFace:"Calibri" });
  });

  s.addShape(pres.ShapeType.rect, { x:6.35, y:4.57, w:3.4, h:0.75, fill:{color:C.navyMid} });
  s.addText("Goal: End AIDS as a public health\nthreat by 2030", { x:6.35, y:4.6, w:3.4, h:0.7, fontSize:13, color:C.gold, bold:true, align:"center", valign:"middle", fontFace:"Calibri" });
}

// ─────────────────────────────────────────────────────────
// SLIDE 16 – ICTC & COUNSELLING SERVICES
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Integrated Counselling & Testing Centres (ICTC)");
  addFooter(s);

  infoBox(s, "Components of HIV Counselling & Testing Services",
    ["1. Integrated Counselling and Testing Centres (ICTC)",
     "2. Prevention of Parent-to-Child Transmission of HIV (PPTCT)",
     "3. HIV/Tuberculosis Collaborative Activities"],
    0.25, 1.2, 9.5, 1.2, C.navyMid);

  infoBox(s, "ICTC – What They Do",
    ["Offer HIV testing services since 1997",
     "Goal: identify PLHIV as early as possible and link to prevention, care & treatment",
     "Introduction of ART in 2004 gave major boost to ICTC services",
     "More than 15,000 ICTCs across India",
     "Diverse models: standalone, facility-based, outreach",
     "Provide voluntary counselling and testing (VCT) and PPTCT services"],
    0.25, 2.55, 4.6, 2.2, C.red);

  infoBox(s, "HIV/TB Co-infection Strategy",
    ["HIV testing offered to all diagnosed TB patients (since 2007–08)",
     "High HIV prevalence states: ~90% TB patients tested for HIV",
     "Case fatality among HIV+TB: 13–14% vs <4% in HIV-negative TB",
     "HIV testing in presumptive TB cases: rolled out October 2012 (Karnataka first)",
     "Strategy: detect HIV within 2–4 weeks of TB positivity",
     "Recommended for 25–54 year age group nationally",
     "Four-pronged strategy for HIV-TB co-ordination to reduce mortality"],
    5.15, 2.55, 4.6, 2.2, C.accentB);
}

// ─────────────────────────────────────────────────────────
// SLIDE 17 – CARE, SUPPORT & TREATMENT
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Care, Support & Treatment (CST) Under NACP");
  addFooter(s);

  infoBox(s, "CST Policy Package – Core Services",
    ["Free universal access to lifelong standardised ART",
     "Free laboratory diagnostic & monitoring: baseline tests, CD4 testing, targeted viral load",
     "Facilitating long-term retention in care",
     "Prevention, diagnosis & management of opportunistic infections",
     "Linkage to care/support services & social protection schemes"],
    0.25, 1.18, 4.6, 2.1, C.navyMid);

  infoBox(s, "Service Delivery Platforms",
    ["ART Centres (free first-line and second-line ART)",
     "Link ART Centres (LACs) – for stable patients near home",
     "Centres of Excellence (CoE)",
     "ART+ Centres",
     "Paediatric ART for children",
     "Care and Support Centres (CSC) – nutritional & psychosocial support",
     "Drop-in centres for PLHIV networks"],
    5.15, 1.18, 4.6, 2.1, C.red);

  infoBox(s, "Prevention Interventions Under NACP",
    ["Condom promotion programme",
     "Blood safety – screening donated blood for HIV, HBV, HCV, syphilis, malaria",
     "Social mobilisation, youth interventions, adolescent education programme",
     "Mainstreaming HIV/AIDS response across all government sectors",
     "Workplace interventions",
     "Community-based HIV screening by ANMs at sub-centre level (to prevent PPTCT)",
     "Link Worker Scheme (LWS) – for rural areas"],
    0.25, 3.42, 9.5, 1.82, C.accent);
}

// ─────────────────────────────────────────────────────────
// SLIDE 18 – SUMMARY TABLE
// ─────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  contentBg(s);
  addHeader(s, "Quick Revision – Key Facts at a Glance");
  addFooter(s);

  const data = [
    ["Topic", "Key Fact", "Number/Detail"],
    ["PPTCT Programme", "Year of launch", "2002"],
    ["PPTCT Strategy", "Current regimen", "Lifelong ART: TDF + 3TC + EFV"],
    ["ICTCs", "Number in India", ">15,000"],
    ["EID Test", "Method used", "HIV-DNA PCR"],
    ["EID", "Age of first testing", "6 weeks of age (onwards)"],
    ["MTCT (no intervention)", "Transmission rate", "20–25%"],
    ["MTCT (with ART)", "Rate in developed countries", "<2%"],
    ["FSW prevalence", "National 2017", "1.6%"],
    ["PWID prevalence", "National 2017", "6.3%"],
    ["TG prevalence", "National 2017", "3.1%"],
    ["Migrant workers", "Estimated in India", "7.2 million"],
    ["Trucker HIV testing", "Coverage 2016", "21.74%"],
    ["Sentinel Surveillance", "Frequency", "Once in 2 years"],
    ["ANC sample size", "Per site per round", "400"],
    ["HRG/Bridge sample size", "Per site per round", "250"],
    ["90-90-90 Goal", "End AIDS", "By 2030"],
  ];

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      const y = 1.18 + ri * 0.265;
      const bg = ri === 0 ? C.navyMid : (ri % 2 === 0 ? "EBF0F5" : C.white);
      const textCol = ri === 0 ? C.white : (ci === 2 ? C.red : C.textDark);
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      s.addText(cell, { x:x+0.06, y, w:colW[ci]-0.1, h:0.26, fontSize:10.5, color:textCol, bold:ri===0||ci===2, fontFace:"Calibri", valign:"middle" });
    });
  });
}

// ─────────────────────────────────────────────────────────
// SLIDE 19 – CONCLUSION / THANK YOU
// ─────────────────────────────────────────────────────────
{
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  sectionBg(s);
  s.addShape(pres.ShapeType.rect, { x:0, y:2.0, w:"100%", h:2.0, fill:{color:C.navyMid} });
  s.addShape(pres.ShapeType.rect, { x:0, y:2.0, w:"100%", h:0.07, fill:{color:C.red} });
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  s.addText("Key Takeaways", { x:0.5, y:0.25, w:9, h:0.6, fontSize:16, bold:true, color:C.gold, fontFace:"Calibri" });
  const pts = [
    "PPTCT is the cornerstone of eliminating paediatric HIV – lifelong ART for all HIV+ pregnant women regardless of CD4 count",
    "EID using HIV-DNA PCR at 6 weeks is essential for early identification and treatment of HIV-exposed infants",
    "Targeted Interventions focus on concentrated high-risk populations (FSW, MSM, TG, PWID) and bridge populations (migrants, truckers)",
    "HIV Sentinel Surveillance uses unlinked anonymous testing with standardized protocols across HRGs, bridge populations, and ANC attendees",
    "India's 90-90-90 strategy aims to end AIDS as a public health threat by 2030",
  ];
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  s.addText("Thank You", { x:0.5, y:2.15, w:9, h:1.2, fontSize:48, bold:true, color:C.white, align:"center", valign:"middle", fontFace:"Calibri" });
  s.addText("Park's Textbook of Preventive & Social Medicine", {
    x:0.5, y:4.15, w:9, h:0.55,
    fontSize:16, color:C.gold, align:"center", fontFace:"Calibri", italic:true,
  });
  s.addText("Prevention of PTCT  •  EID  •  HIV & Pregnancy  •  Targeted Interventions  •  Key Populations  •  Bridge Population  •  HIV Sentinel Surveillance", {
    x:0.5, y:4.75, w:9, h:0.45, fontSize:11, color:C.lightGray, align:"center", fontFace:"Calibri",
  });
}

// ─────────────────────────────────────────────────────────
// WRITE FILE
// ─────────────────────────────────────────────────────────
pres.writeFile({ fileName: "/home/daytona/workspace/hiv-pptct-presentation/PPTCT_Targeted_Interventions_KPark.pptx" })
  .then(() => console.log("Done: PPTCT_Targeted_Interventions_KPark.pptx"))
  .catch(e => { console.error(e); process.exit(1); });

cd /home/daytona/workspace/hiv-pptct-presentation && node build.js 2>&1

~/hiv-pptct-presentation/build.js

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/hiv-pptct-presentation/build.js'

cd /home/daytona/workspace/hiv-pptct-presentation && node build.js 2>&1