Water-borne diseases: classification and prevention/control. 2. Enumerate the diseases covered under National Vector Borne Diseases Control Programme. 3. Write strategies of prevention and control either for malaria or dengue fever.. Give me the answer of above three questions from the K Park standard book of PSM Community Medicine MBBS for my university exam to write in theory exam for the exam point of view.
Answers from K Park's Textbook of Preventive and Social Medicine (PSM)
Q.1 - Water-Borne Diseases: Classification and Prevention/Control
Definition
CLASSIFICATION OF WATER-RELATED DISEASES
A. Biological (Water-Borne Diseases)
| Category | Diseases |
|---|---|
| (a) Viral | Viral hepatitis A, Hepatitis E, Poliomyelitis, Rotavirus diarrhoea in infants |
| (b) Bacterial | Typhoid and paratyphoid fever, Bacillary dysentery, E. coli diarrhoea, Cholera |
| (c) Protozoal | Amoebiasis, Giardiasis |
| (d) Helminthic | Roundworm, Threadworm, Hydatid disease |
| (e) Leptospiral | Weil's disease |
| Host | Diseases |
|---|---|
| (a) Snail | Schistosomiasis |
| (b) Cyclops | Guineaworm, Fish tapeworm |
B. Chemical
- (a) Dental health: Fluoride at ~1 mg/litre protects against dental caries; high levels cause mottling of dental enamel (fluorosis)
- (b) Cyanosis in infants: High nitrate content causes methaemoglobinaemia
- (c) Cardiovascular diseases: Hardness of water appears to have a beneficial protective effect
C. Water-Washed Diseases (due to inadequate use/quantity of water)
- Shigellosis, Trachoma, Conjunctivitis, Ascariasis, Scabies
D. Water-Based/Water-Related Insect Vector Diseases
- Malaria, Filaria, Arboviruses (dengue, JE), Onchocerciasis, African trypanosomiasis - related to disease-carrying insects breeding in or near water
PREVENTION AND CONTROL OF WATER-BORNE DISEASES
- Purification of water on a large scale: sedimentation, filtration (slow sand/rapid sand filter), disinfection (chlorination)
- Residual chlorine: 0.5 mg/litre after 1 hour contact is standard
- Purification on small scale: boiling, chemical disinfection (bleaching powder, chlorine tablets), household filters
- Proper sanitation and sewage disposal to prevent faeco-oral contamination of water sources
- Preventing contamination of food and drinks through safe food handling practices
- Handwashing, safe storage of drinking water in the home
- Informing the community about safe water practices, hygiene, and disease transmission
- Monitoring outbreaks of water-borne diseases; investigating source of contamination promptly
- Water (Prevention and Control of Pollution) Act, 1974 in India provides for Central and State Water Boards with wide powers for controlling water pollution
- Source protection: prevention of contamination of water sources at origin
- Water conservation: rainwater harvesting, preventing wastage
Q.2 - Diseases Covered Under the National Vector Borne Diseases Control Programme (NVBDCP)
About NVBDCP
Diseases Covered Under NVBDCP
| S.No. | Disease | Vector |
|---|---|---|
| 1. | Malaria | Female Anopheles mosquito |
| 2. | Filariasis (Lymphatic filariasis) | Culex mosquito |
| 3. | Kala-azar (Visceral Leishmaniasis) | Sandfly (Phlebotomus) |
| 4. | Japanese Encephalitis (JE) | Culex mosquito |
| 5. | Dengue / Dengue Haemorrhagic Fever (DHF) | Aedes aegypti mosquito |
| 6. | Chikungunya | Aedes aegypti / Aedes albopictus |
Three-Pronged Strategy of NVBDCP
Q.3 - Strategies of Prevention and Control of Malaria
(a) Surveillance and Case Management
- Case detection - Both passive (patient presenting to health facility) and active case detection (house-to-house survey in endemic/epidemic areas)
- Early diagnosis and complete treatment:
- All fever cases diagnosed as malaria by microscopy or Rapid Diagnostic Test (RDT) should promptly be given effective treatment
- Aims at: complete cure; prevention of progression to severe disease; prevention of deaths; interruption of transmission; minimizing risk of drug resistance
- Sentinel surveillance - 521 sentinel surveillance hospitals with laboratory support identified in endemic states; 14 Apex Referral Laboratories linked with sentinel hospitals; IgM capture ELISA kits provided by National Institute of Virology, Pune
(b) Integrated Vector Management (IVM)
-
Indoor Residual Spray (IRS)
- Spraying of insecticides (DDT, Malathion, synthetic pyrethroids) on inner walls and ceilings of houses
- Effective in areas with endophilic (indoor-resting) vectors
-
Insecticide Treated Bed-Nets (ITNs) and Long Lasting Insecticidal Nets (LLINs)
- Mass distribution of LLINs in high-burden districts
- Provide personal protection and kill/repel mosquitoes
-
Anti-larval measures including source reduction
- Biological control: use of larvivorous fish (Gambusia, Lebistes) in water bodies
- Chemical larviciding: temephos (Abate)
- Source reduction: eliminating or draining mosquito breeding sites
- Environmental engineering: proper drainage, preventing stagnant water collection
(c) Epidemic Preparedness and Early Response
- Rapid response to outbreaks
- Epidemic action plans at district and state level
- Contingency grants to meet operational costs
- Media management during outbreaks
(d) Supportive Interventions
- Capacity building - Training health workers at all levels; ASHA (Accredited Social Health Activists) trained as Fever Treatment Depots (FTDs) for RDT and early treatment in villages
- Behavioural Change Communication (BCC) - IEC (Information, Education, Communication) activities; promoting use of bed-nets, early treatment-seeking, and environmental measures
- Inter-sectoral collaboration - Coordination with ministries of water resources, urban development, agriculture, etc.
- Monitoring and Evaluation - Periodic review, field visits, web-based Management Information System (MIS)
- Operational research - Studies on drug resistance and insecticide susceptibility
Drug Treatment Policy (Revised 2013)
| Species | Treatment |
|---|---|
| P. vivax | Chloroquine 25 mg/kg over 3 days + Primaquine 0.25 mg/kg/day for 14 days (to prevent relapse) |
| P. falciparum | ACT (Artesunate 3 days + Sulfadoxine-Pyrimethamine 1 day) + single dose Primaquine (0.75 mg/kg) on Day 2 |
| P. falciparum in North-East | Artemether-Lumefantrine (due to SP resistance) |
| Malaria in Pregnancy - 1st trimester | Quinine (for P. falciparum); Chloroquine (for P. vivax); Primaquine contraindicated |
| Malaria in Pregnancy - 2nd/3rd trimester | ACT for P. falciparum; Chloroquine for P. vivax |
Global Technical Strategy for Malaria (WHO, 2016-2030)
- Pillar 1: Ensure universal access to malaria prevention, diagnosis and treatment
- Pillar 2: Accelerate efforts towards elimination and attainment of malaria-free status
- Pillar 3: Transform malaria surveillance into a core intervention
Source: Park's Textbook of Preventive and Social Medicine, 25th Edition - Chapters on Water Supply & Sanitation, National Health Programmes (NVBDCP), and Communicable Diseases (Malaria, Dengue).
STYLE GOAL: Design the notes like premium handcrafted digital study notes on a clean A4 white page in portrait orientation. The page should look polished, minimal, neat, and easy to revise in one glance. Use a handwritten-but-very-legible academic note style, with strong visual hierarchy and lots of white space. The final output should feel like topper-style revision notes, not like a textbook page. VISUAL DESIGN: - Background: clean matte white paper, slightly warm white, smooth texture, no ruled lines. - Page format: A4 portrait, centered composition, equal margins on all sides. - Main title: very large uppercase deep royal blue heading, centered, bold, clean, marker-style handwritten look. - Subtitle strip: place a pale pastel yellow highlight bar below the main title; write a short exam-oriented subtitle in black uppercase text. - Section headings: use dark red or brick red color, numbered clearly (1., 2., 3., etc.), slightly larger than body text. - Body text: use neat black or very dark charcoal handwritten font, highly readable, medium-small size, consistent line spacing. - Keywords: highlight important terms in blue or underline them in blue. - Special emphasis: use red for critical labels, blue for keywords, black for explanations, pale yellow for highlight strips, and thin grey/red borders for boxes and tables. - Boxes: use thin rounded rectangular boxes for definitions, essential points, limitations, examples, and summary sections. - Tables: create clean ruled tables with thin lines, proper alignment, and enough spacing so they do not look cramped. - Overall aesthetic: elegant, tidy, minimal, academic, handwritten digital note design, no clutter, no excessive decoration. FONT DIRECTION: - Main title font style: marker-like uppercase handwritten font, similar to a clean medical revision poster heading. - Section heading font style: neat semi-bold handwritten uppercase or small caps. - Body font style: smooth monoline handwritten font, highly readable, similar to neat topper notes. - If exact fonts are needed, use close digital alternatives such as: - Title: Marker Felt / Balsamiq Sans Bold / Permanent Marker (clean version) - Section headings: Nunito Sans SemiBold / Kalam Bold / Patrick Hand Bold - Body text: Patrick Hand / Kalam Regular / Comic Neue / Segoe Print (clean and readable) - Do not use cursive calligraphy, fancy decorative fonts, or overly childish handwriting. LAYOUT STRUCTURE: For the given topic, convert the content into a highly structured revision page using sections such as: 1. Definition 2. Core concept / introduction 3. Important classifications or components 4. Essential requirements / criteria 5. Tables for comparison where useful 6. Applications / examples / case relevance 7. Limitations / exceptions / precautions 8. Importance / public health significance 9. Must write in exam 10. Key words / quick recall box CONTENT RULES: - Rewrite the SOURCE CONTENT into concise, accurate, exam-oriented notes for MBBS PSM. - Keep all medically important and university-relevant points. - Simplify long paragraphs into compact bullet points. - Convert dense theory into short definitions, subheadings, tables, arrows, and high-yield summary blocks. - Preserve factual accuracy; do not invent medical facts. - Keep standard textbook terminology where important. - Include national program names, definitions, formulas, indicators, epidemiological terms, and prevention levels whenever relevant. - If the topic contains comparisons, convert them into tables. - If the topic contains steps or hierarchy, convert them into flow-style bullet sequencing. - If the topic contains lists, cluster them into exam-friendly groups. - Add a “Must Write in Exam” section with the most scoring points. - Add a “Key Words” mini box for rapid last-minute revision. - Make it useful for fast revision before MBBS exams. - The notes should reduce reading load while still covering the chapter’s high-yield content. PSM-SPECIFIC PREFERENCES: - Prioritize definitions, epidemiology, concept clarity, indices, preventive measures, national health programs, screening, levels of prevention, risk factors, indicators, important acts/policies, and community application. - Use public health language appropriate for MBBS students. - Keep the tone academic but concise. - Where possible, organize content as: - definition - significance - causes / determinants - indicators / criteria - prevention / control - programmatic relevance - exam points QUALITY CONTROL: - Make the page visually balanced and not overcrowded. - Keep spacing even between sections. - Align boxes and tables neatly. - Ensure handwriting is very legible. - Make the result look clean enough to print or save as final revision notes. - Avoid messy strokes, uneven alignment, dark shadows, random doodles, or overcrowded text. - Avoid textbook screenshot appearance. - Avoid paragraph-heavy blocks. - Avoid too many colors; stay within blue, red, black, grey, and pale yellow pastel tones. OUTPUT INTENT: Generate final notes that look like premium handwritten digital revision notes made by a top MBBS student for Community Medicine / PSM exam preparation. TOPIC: [Dengue]
📋 Dengue — PSM Revision Notes (K. Park)
| Format | Download |
|---|---|
| 🖼️ Full-page PNG (printable) | dengue notes full Image · PNG |
| 📄 PDF (A4, print-ready) | dengue notes PDF Document · PDF |
| 🌐 HTML (editable source) | dengue notes HTML File · HTML |
What's covered in the notes (8 structured sections):
- Definition & Introduction - with global burden stats (390M infections/year, 3.9B at risk) and India-specific data
- Epidemiological Determinants - Agent / Vector / Host / Environment table
- Classification - Iceberg phenomenon, Dengue Fever / DHF / DSS / Severe Dengue, WHO Grades I-IV, Warning Signs table
- Diagnosis - NS1 antigen (Day 1+), IgM ELISA (Day 5+), haematocrit, tourniquet test; 521 sentinel hospitals + 14 apex labs
- Management - DF vs DHF/DSS columns; contraindications (Aspirin/NSAIDs) prominently highlighted
- Prevention & Control - GOI Mid-Term Plan 2011 in 3-column layout; vector control (source reduction, weekly dry day, larviciding, personal protection)
- Vaccine - CYD-TDV (Dengvaxia) details + WHO seropositive-only caution
- Global Strategy - WHO 2012-2020 goals
I am unable to open these files and if I open these files, they are blank and saying error message. Please give me another source of download or give me any other source or in the image form.