Epidemiology, Prevention, Control and Management of Water-Borne Diseases

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pres.title = "Epidemiology of Water-Borne Diseases";
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// ══════════════════════════════════════════════════════════════
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// ══════════════════════════════════════════════════════════════
// SLIDE 2 – TABLE OF CONTENTS
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    ["02", "Global Epidemiology & Burden"],
    ["03", "Epidemiological Triad & Transmission"],
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// ══════════════════════════════════════════════════════════════
// SLIDE 3 – DEFINITION & CLASSIFICATION
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    { label: "PROTOZOAL", color: C.highlight, items: ["Amoebiasis", "Giardiasis", "Cryptosporidiosis", "Cyclosporiasis"] },
    { label: "HELMINTHIC / OTHER", color: C.green, items: ["Guinea Worm (Dracunculiasis)", "Ascariasis", "Fluorosis (chemical)", "Arsenicosis"] },
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// ══════════════════════════════════════════════════════════════
// SLIDE 4 – GLOBAL EPIDEMIOLOGY
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    "High burden in LMICs — tropical & subtropical regions",
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    "Top pathogens in LMICs: Rotavirus & E. coli (most common)",
    "Shigella & Cryptosporidium – globally significant",
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// ══════════════════════════════════════════════════════════════
// SLIDE 5 – EPIDEMIOLOGICAL TRIAD
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// ══════════════════════════════════════════════════════════════
// SLIDE 6 – PREVENTION STRATEGIES
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// ══════════════════════════════════════════════════════════════
// SLIDE 7 – CONTROL MEASURES
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// ══════════════════════════════════════════════════════════════
// SLIDE 8 – CLINICAL MANAGEMENT
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    {
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      lines: ["Mainstay: ORS (WHO formula)", "Severe: IV Ringer's Lactate – rapid rehydration", "Antibiotics: Doxycycline (adults), Azithromycin (children/pregnant)", "Zinc supplementation in children", "Target: 10% dehydration weight loss correction in 4 hrs"]
    },
    {
      name: "TYPHOID FEVER", color: C.accent,
      lines: ["1st line: Fluoroquinolones (susceptible strains)", "Drug-resistant: Azithromycin or Ceftriaxone", "XDR Typhoid: Meropenem (carbapenem)", "Perforation: Surgical management", "Carrier state: Treat with ampicillin/ciprofloxacin"]
    },
    {
      name: "HEPATITIS A / E", color: C.green,
      lines: ["Supportive treatment – no specific antiviral", "Rest, adequate nutrition, hydration", "Avoid hepatotoxins (alcohol, paracetamol excess)", "Hep E in pregnancy: close monitoring", "Prevention: Hep A vaccine (travelers & risk groups)"]
    },
    {
      name: "CRYPTOSPORIDIOSIS", color: C.highlight,
      lines: ["Immunocompetent: Nitazoxanide 3 days", "Supportive ORT for diarrhea", "HIV patients: ART to restore immunity", "Chlorine-resistant: UV filtration essential", "Notify public health for outbreaks"]
    },
    {
      name: "AMOEBIASIS", color: C.mid,
      lines: ["Tissue amoebiasis: Metronidazole 10 days", "Luminal cysts: Diloxanide furoate / Paromomycin", "Amoebic liver abscess: Metronidazole ± drainage", "Prevent carrier state: Luminal agent after tissue tx", "Stool microscopy / antigen test for diagnosis"]
    },
  ];

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    [0.18, 1.2], [3.32, 1.2], [6.46, 1.2],
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      x, y, w: 3.05, h: 0.42,
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    s.addText(d.name, {
      x, y, w: 3.05, h: 0.42,
      fontSize: 10, bold: true, color: C.white,
      fontFace: "Calibri", align: "center", valign: "middle", margin: 0
    });
    d.lines.forEach((line, j) => {
      s.addText([
        { text: "→ ", options: { color: d.color, bold: true } },
        { text: line, options: { color: C.dark } }
      ], {
        x: x + 0.1, y: y + 0.46 + j * 0.35, w: 2.85, h: 0.33,
        fontSize: 8.5, fontFace: "Calibri", valign: "middle", margin: 0
      });
    });
  });

  // ORT reminder box
  card(s, 6.46, 3.08, 3.36, 2.23, C.dark);
  s.addText("💊 ORS FORMULA (WHO)", {
    x: 6.56, y: 3.13, w: 3.2, h: 0.38,
    fontSize: 10.5, bold: true, color: C.yellow,
    fontFace: "Calibri", margin: 0
  });
  const ors = [
    "NaCl ........... 2.6 g/L",
    "KCl ............. 1.5 g/L",
    "Trisodium citrate . 2.9 g/L",
    "Glucose ....... 13.5 g/L",
    "Total Osmolarity: 245 mOsm/L",
  ];
  ors.forEach((line, i) => {
    s.addText(line, {
      x: 6.56, y: 3.58 + i * 0.34, w: 3.1, h: 0.32,
      fontSize: 9.5, color: i === 4 ? C.highlight : C.light,
      fontFace: "Courier New", bold: i === 4, margin: 0
    });
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}

// ══════════════════════════════════════════════════════════════
// SLIDE 9 – NATIONAL PROGRAMMES (INDIA)
// ══════════════════════════════════════════════════════════════
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  addSlideHeader(s, "NATIONAL PROGRAMMES – INDIA", "Government of India initiatives for safe water, sanitation & disease surveillance");

  const programmes = [
    {
      name: "Jal Jeevan Mission (JJM)",
      year: "2019 – 2028",
      color: C.accent,
      ministry: "Ministry of Jal Shakti",
      desc: "Provide 55 L/capita/day safe tap water to every rural household. JJM 2.0 approved March 2026 with ₹3.60 lakh crore budget, extended to 2028.",
    },
    {
      name: "Swachh Bharat Mission (SBM)",
      year: "2014 – Ongoing",
      color: C.green,
      ministry: "Ministry of Jal Shakti / Urban Affairs",
      desc: "Aims to achieve Open Defecation Free (ODF) India. SBM 2.0 targets ODF+ & ODF++ status, solid waste management, wastewater treatment.",
    },
    {
      name: "National Health Mission (NHM)",
      year: "2013 – Ongoing",
      color: C.highlight,
      ministry: "Ministry of Health & Family Welfare",
      desc: "Includes Integrated Disease Surveillance Programme (IDSP) for waterborne disease outbreak detection, reporting and rapid response at district/state level.",
    },
    {
      name: "IDSP (Integrated Disease Surveillance Programme)",
      year: "2004 – Ongoing",
      color: C.red,
      ministry: "MOHFW / NCDC",
      desc: "Monitors waterborne disease outbreaks at district/state level. Issues alerts (P/S/L forms). Provides epidemiological data for early outbreak response.",
    },
    {
      name: "National Rural Drinking Water Programme (NRDWP)",
      year: "2009 – 2019",
      color: C.mid,
      ministry: "Ministry of Drinking Water & Sanitation",
      desc: "Predecessor to JJM. Provided safe drinking water to rural areas. Subsumed under Jal Jeevan Mission from 2019.",
    },
  ];

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      fontFace: "Calibri", valign: "middle", margin: 0
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}

// ══════════════════════════════════════════════════════════════
// SLIDE 10 – INTERNATIONAL PROGRAMMES
// ══════════════════════════════════════════════════════════════
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  const intl = [
    {
      org: "WHO WASH", icon: "🌐",
      color: C.accent,
      title: "Water, Sanitation & Hygiene Programme",
      points: ["Technical cooperation, capacity building for governments", "Water Safety Plans (WSP): risk-based multi-barrier approach", "Guidelines for Drinking Water Quality"]
    },
    {
      org: "UN SDG 6", icon: "🎯",
      color: C.yellow,
      title: "Clean Water & Sanitation – 2030 Agenda",
      points: ["Universal access to safe water & sanitation by 2030", "Target 3.3: Combat WBDs by 2030", "SDG 6: Ensure availability & sustainable mgmt of water"]
    },
    {
      org: "GTFCC", icon: "🔬",
      color: C.red,
      title: "Global Cholera Roadmap 2030",
      points: ["WHO-led Global Task Force on Cholera Control", "Target: 90% reduction in cholera deaths by 2030", "OCV stockpiles, WASH infrastructure, surveillance"]
    },
    {
      org: "GWEP", icon: "🏆",
      color: C.green,
      title: "Guinea Worm Eradication Programme",
      points: ["Carter Center + CDC + WHO + UNICEF partnership", "Reduced cases from 3.5M (1986) to near-zero (2024)", "Landmark water-borne disease eradication effort"]
    },
    {
      org: "UNICEF WASH", icon: "👶",
      color: C.highlight,
      title: "WASH in Emergencies & Development",
      points: ["Water & sanitation infrastructure in LMICs", "Emergency WASH response in disasters", "WASH in schools & health care facilities"]
    },
    {
      org: "CDC / NORS", icon: "📊",
      color: C.light,
      title: "National Outbreak Reporting System (USA)",
      points: ["Voluntary WBD outbreak reporting by 57 reporting areas", "Evidence base for US waterborne disease policy", "Informs drinking water regulations & treatment standards"]
    },
  ];

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    [0.18, 1.1], [3.38, 1.1], [6.58, 1.1],
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      x, y, w: 3.1, h: 0.42,
      fill: { color: item.color === C.light ? C.mid : item.color },
      line: { color: item.color === C.light ? C.mid : item.color }
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        fontSize: 8.5, fontFace: "Calibri", margin: 0
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// ══════════════════════════════════════════════════════════════
// SLIDE 11 – SURVEILLANCE & KEY INDICATORS
// ══════════════════════════════════════════════════════════════
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    ["Outbreak Surveillance", "Investigation of disease clusters linked to common water source"],
    ["Water Quality Monitoring", "Regular bacteriological (E. coli / coliforms) & chemical testing"],
    ["Sentinel Surveillance", "Health facility-based monitoring of diarrheal disease trends"],
    ["Event-Based Surveillance (EBS)", "Media monitoring, community alerts, rumor tracking"],
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    s.addText(item[1], {
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      fontFace: "Calibri", margin: 0
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    fontSize: 10.5, bold: true, color: C.yellow,
    fontFace: "Calibri", margin: 0
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    { indicator: "Free residual chlorine (piped)", target: "0.2 – 0.5 mg/L", color: C.accent },
    { indicator: "Safe managed drinking water", target: "Universal by 2030 (SDG 6)", color: C.green },
    { indicator: "Open defecation", target: "Zero OD – ODF status", color: C.highlight },
    { indicator: "Diarrheal mortality < 5 yrs", target: "< 25 / 1000 live births (SDG 3.2)", color: C.yellow },
    { indicator: "Cholera deaths (global)", target: "−90% by 2030 (GTFCC roadmap)", color: C.light },
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      fontFace: "Calibri", margin: 0
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      fontSize: 9, color: ind.color,
      fontFace: "Calibri", margin: 0
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}

// ══════════════════════════════════════════════════════════════
// SLIDE 12 – SUMMARY / CLOSING
// ══════════════════════════════════════════════════════════════
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    x: 0, y: 0.1, w: 0.12, h: 5.525,
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    { icon: "💀", text: "WBDs cause ~1.5 million deaths/year; diarrhea is 2nd leading cause of death in children < 5 yrs globally" },
    { icon: "🦠", text: "Major pathogens: Cholera, Typhoid, Rotavirus, Hep A/E, Shigella, E. coli, Giardia, Cryptosporidium" },
    { icon: "🔗", text: "Transmission primarily fecal-oral via contaminated water; amplified by climate change & flooding" },
    { icon: "🛡️", text: "Prevention: Safe water supply, sanitation, handwashing, vaccination (OCV, TCV, Hep A, Polio)" },
    { icon: "💊", text: "Management: ORT is the cornerstone; antibiotics for bacterial causes; specific agents for parasites" },
    { icon: "🏛️", text: "India: Jal Jeevan Mission 2.0 (2026-28), Swachh Bharat Mission, IDSP for outbreak surveillance" },
    { icon: "🌍", text: "Global: WHO WASH, SDG-6 (2030), Global Cholera Roadmap (−90% deaths), Guinea Worm near-eradication" },
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// ── WRITE FILE ────────────────────────────────────────────────
pres.writeFile({ fileName: "/home/daytona/workspace/waterborne-disease-ppt/Waterborne_Diseases.pptx" })
  .then(() => console.log("✅ PPT created: Waterborne_Diseases.pptx"))
  .catch(err => console.error("❌ Error:", err));