*For 3rd Year PGs Today βs Write up*:- Recent heavy rainfall has resulted in urban flooding in Ahmedabad ,Gujarat As a District Health Officer, discuss: 1. The public health impact of floods. 2. The role of the District Health Administration during the prevention, preparedness, response, and recovery phases of disaster management. 3. The role relevant National Health Programs in flood management. 4. The importance of intersectoral coordination, community participation, and risk communication during flood emergencies.
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https://nidm.gov.in/PDF/Modules/Book_Participating.pdf
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India flood disaster management DHO role NDMA IDSP NVBDCP NHM intersectoral coordination risk communication Gujarat
*For 3rd Year PGs Today βs Write up*:- Recent heavy rainfall has resulted in urban flooding in Ahmedabad ,Gujarat As a District Health Officer, discuss: 1. The public health impact of floods. 2. The role of the District Health Administration during the prevention, preparedness, response, and recovery phases of disaster management. 3. The role relevant National Health Programs in flood management. 4. The importance of intersectoral coordination, community participation, and risk communication during flood emergencies. With flow chart
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https://nihfw.ac.in/Doc/Background%20Document%20DHO.pdf
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π URBAN FLOODING IN AHMEDABAD, GUJARAT
A Comprehensive Public Health Write-Up for 3rd Year PGs
Perspective of a District Health Officer (DHO)
MASTER FLOWCHART: Flood Disaster - District Health Response Cycle
βββββββββββββββββββββββββββββββββββββββββββββββ
β HEAVY RAINFALL β URBAN FLOODING β
β AHMEDABAD, GUJARAT β
ββββββββββββββββββββ¬βββββββββββββββββββββββββββ
β
βββββββββββββββββββββββββββββΌβββββββββββββββββββββββββββββ
β DISASTER MANAGEMENT CYCLE β
β (NDMA Framework - Disaster Management Act 2005) β
βββββββββ¬ββββββββββββββββββββββββββββββββββββββββββββββββ
β
ββββββββββββββββΌβββββββββββββββββββββββββββββββββββββββββββ
β 4 PHASES β
β β
β PREVENTION β PREPAREDNESS β RESPONSE β RECOVERY β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β β β β
βΌ βΌ βΌ βΌ
[Pre-event] [Pre-event] [During/After] [Post-event]
Mitigation Readiness Relief & Care Rehabilitation
1. PUBLIC HEALTH IMPACT OF FLOODS
Floods are the most frequent and damaging natural disasters in India. Gujarat - situated in a flood-prone western zone - faces recurrent inundation. Ahmedabad's urban flooding poses layered health threats across three temporal domains.
A. IMMEDIATE IMPACTS (Hours - Days)
| Category | Health Impact |
|---|---|
| Trauma | Drowning, head injuries, fractures, crush injuries, electrocution from submerged cables |
| Hypothermia | Prolonged exposure to floodwater, especially elderly and children |
| Mental health | Acute stress reaction, panic, separation from family |
| Displacement | Forced evacuation to relief camps - overcrowding |
Drowning is the leading cause of flood mortality - adults attempting rescue and children are at highest risk.
B. INTERMEDIATE IMPACTS (Days - Weeks): COMMUNICABLE DISEASES
This is the most critical public health burden. Flood conditions amplify disease transmission through:
"Disasters can increase the transmission of communicable diseases through: overcrowding and poor sanitation in temporary resettlements; population displacement introducing diseases to susceptible populations; disruption and contamination of water supply; disruption of routine control programmes; ecological changes favouring vector breeding; displacement of domestic/wild animals carrying zoonoses."
- Park's Textbook of Preventive and Social Medicine
FLOOD WATER CONTAMINATION
β
βββββ Drinking water contamination
β β
β ββββββββββΌβββββββββββ
β β WATERBORNE β
β β DISEASES β
β β β’ Cholera β
β β β’ Typhoid β
β β β’ Hepatitis A/E β
β β β’ Gastroenteritisβ
β β (most common β
β β post-disaster) β
β βββββββββββββββββββββ
β
βββββ Stagnant water β Vector breeding
β β
β ββββββββββΌβββββββββββ
β β VECTOR-BORNE β
β β DISEASES β
β β β’ Malaria β
β β β’ Dengue/DHF β
β β β’ Chikungunya β
β β β’ Japanese β
β β Encephalitis β
β βββββββββββββββββββββ
β β Note: Vector-borne diseases
β take weeks to reach epidemic levels
β
βββββ Animal displacement / Rat infestation
β β
β ββββββββββΌβββββββββββ
β β ZOONOTIC/ β
β β SOIL-CONTACT β
β β DISEASES β
β β β’ Leptospirosis β
β β β
(Gujarat high β
β β risk post- β
β β flood) β
β β β’ Rat-bite fever β
β β β’ Anthrax (rare) β
β βββββββββββββββββββββ
β
βββββ Overcrowding in shelters
β
ββββββββββΌβββββββββββ
β RESPIRATORY β
β DISEASES β
β β’ ARI / SARI β
β β’ COVID/Influenza β
β β’ Measles β
β (if unvaxd) β
βββββββββββββββββββββ
Leptospirosis in Gujarat deserves special mention - the organism enters through skin abrasions during wading in contaminated floodwater. Historical precedent: Post super-cyclone Orissa (1999), post-Mumbai floods (2005) - 310 leptospirosis cases and 27 deaths in one month.
C. LONG-TERM / INDIRECT IMPACTS
- Malnutrition - disruption of food supply, destruction of crops
- Mental health morbidity - Post-Traumatic Stress Disorder (PTSD), depression, anxiety; particularly in women, elderly, and children
- Non-communicable disease exacerbation - interruption of chronic disease medications (diabetes, hypertension, epilepsy)
- Maternal and child health - disruption of ANC, immunization, institutional deliveries
- Healthcare infrastructure damage - flooding of PHCs, CHCs; loss of cold-chain, drugs, records
- Economic impact - loss of livelihood, displacement, increased poverty (healthcare avoidance)
- Environmental contamination - industrial effluents, chemical runoff from Ahmedabad's textile/chemical industries into floodwater
2. ROLE OF DISTRICT HEALTH ADMINISTRATION - FOUR PHASES
The District Health Officer functions as the health lead under the District Disaster Management Authority (DDMA), chaired by the District Collector. The DDMA coordinates planning, response, and recovery at the district level as per the Disaster Management Act, 2005.
COMPREHENSIVE FLOWCHART: DHO Actions Across the Disaster Cycle
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
DISTRICT HEALTH OFFICER - 4 PHASE ROLE
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β PHASE 1: PREVENTION / MITIGATION (Pre-disaster, Long-term) β
β β
β DHO Actions: β
β βΊ Mapping of flood-prone wards in Ahmedabad (GIS-based) β
β βΊ Identify vulnerable populations (slums near Sabarmati river, β
β Walled City, low-lying areas) β
β βΊ Ensure safe water supply infrastructure (chlorination plants) β
β βΊ Inspect and certify water supply and sewerage systems β
β βΊ Enforce sanitation standards (Swachh Bharat) β
β βΊ Immunization drives: Typhoid, Hepatitis A, measles, TT β
β βΊ Leptospirosis prophylaxis protocol establishment β
β βΊ Hazard vulnerability and capacity assessment (HVCA) β
β βΊ Ensure hospital buildings are structurally safe (Hospital β
β Safety Index) β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β
βΌ
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β PHASE 2: PREPAREDNESS (Pre-disaster, Short-term) β
β β
β DHO Actions: β
β βΊ Develop and update District Health Disaster Management Plan β
β βΊ Activate District Disease Control Room (DCR) β
β βΊ Activate DDMA Health Sub-committee β
β βΊ Pre-position emergency medical supplies at strategic points β
β (ORS, IV fluids, antibiotics, chlorine tablets, bleaching β
β powder, anti-malarials, leptospirosis prophylaxis - Doxy) β
β βΊ Train Rapid Response Teams (RRTs) - epidemiologist, β
β clinician, microbiologist, entomologist β
β βΊ Identify and prepare relief camp sites (schools, community β
β halls) with medical posts β
β βΊ List of hospitals with bed capacity, blood banks, O2 β
β βΊ 24Γ7 Emergency Operations Centre (EOC) activation β
β βΊ Identify ambulances, boats for medical evacuation β
β βΊ Conduct mock drills and table-top exercises β
β βΊ IEC material preparation in Gujarati for flood health warnings β
β βΊ Coordination meetings with AMC (Ahmedabad Municipal Corp), β
β GSDMA, SDMA, IMD, PWD, Revenue, Police β
β βΊ Coordinate with IDSP DSO for enhanced surveillance protocol β
β βΊ Pre-alert blood banks and referral hospitals β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β
βΌ
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β PHASE 3: RESPONSE (During and immediately after flood) β
β β
β A. IMMEDIATE (0-72 hours): β
β βΊ Activate EOC and ICS (Incident Command System) β
β βΊ Deploy Mobile Medical Teams (MMTs) to affected wards β
β βΊ Search, rescue, first aid at flood sites β
β βΊ Triage at field level (START triage) + MEDEVAC β
β βΊ Deploy boats with medical personnel for marooned patients β
β βΊ Set up medical posts at all relief camps β
β βΊ Ensure safe drinking water (water tankers, chlorination) β
β - Maintain residual chlorine 0.2β0.5 mg/L β
β βΊ Emergency ORS distribution, treatment for diarrhea β
β βΊ Injury management (wounds, fractures, drowning resuscitation) β
β βΊ Body management: remove, transport, identify, mortuary care β
β β
β B. SURVEILLANCE (Ongoing from Day 1): β
β βΊ Activate IDSP enhanced surveillance - "S", "P", "L" forms β
β βΊ Daily line listing of cases from relief camps + PHCs β
β βΊ Report to State Surveillance Unit within 24 hours β
β βΊ Activate Early Warning and Response System (EWARS) β
β βΊ Immediate investigation of any outbreak cluster β
β βΊ Deploy RRT on alert signal β
β β
β C. DISEASE CONTROL: β
β βΊ Intensified vector control: larviciding, fogging β
β (NVBDCP protocol) β
β βΊ Leptospirosis prophylaxis: Doxycycline 200mg weekly β
β to high-risk persons (rescue workers, those wading) β
β βΊ Oral cholera vaccine (OCV) if outbreak risk high β
β βΊ Water testing - bacteriological and chemical daily β
β βΊ Food safety inspections at relief camp kitchens β
β βΊ Emergency sanitation: trench latrines at camps β
β β
β D. HEALTH FACILITY MANAGEMENT: β
β βΊ Ensure PHCs/CHCs operational or re-establish temporary units β
β βΊ Drug and supply replenishment on war footing β
β βΊ Functional cold-chain for vaccines β
β βΊ Psychosocial first aid at camps β
β βΊ Maternal care: safe delivery facilities at camps β
β βΊ Ensure insulin/TB/epilepsy medications for displaced patients β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β
βΌ
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β PHASE 4: RECOVERY / REHABILITATION (Weeks to Months) β
β β
β DHO Actions: β
β βΊ Restore routine health services (OPD, ANC, immunization) β
β βΊ Continue enhanced disease surveillance for 4-6 weeks β
β βΊ Rebuild/repair damaged PHC infrastructure β
β βΊ Re-establish cold-chain system β
β βΊ Catch-up immunization for missed children β
β βΊ Mental health camps for PTSD/depression screening β
β βΊ Nutritional rehabilitation - Anganwadi, NRC for SAM children β
β βΊ Return of displaced persons - health clearance for camps β
β βΊ After Action Review (AAR): lessons learned documentation β
β βΊ Update District Health Disaster Management Plan β
β βΊ Debrief health workers; psychosocial support for rescuers β
β βΊ Strengthen water and sanitation infrastructure for future β
β βΊ Advocate to DDMA/AMC for flood-resilient hospital design β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
3. ROLE OF RELEVANT NATIONAL HEALTH PROGRAMS IN FLOOD MANAGEMENT
FLOWCHART: National Health Programs - Flood Linkages
NATIONAL HEALTH PROGRAMS IN FLOOD MANAGEMENT
βββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 1. INTEGRATED DISEASE SURVEILLANCE PROGRAMME (IDSP) β
β Lead agency: NCDC, MoHFW β
β β
β Role in Floods: β
β β’ CORE program for flood disease monitoring β
β β’ Enhanced surveillance using S (Syndromic), P (Probable), β
β L (Lab-confirmed) forms β
β β’ District Surveillance Unit (DSU) β State Surveillance Unit β
β β’ Activate EWARS (Early Warning and Response System) β
β β’ Rapid Response Teams (RRT) deployed for outbreak control β
β β’ Line listing of cases from relief camps, PHCs β
β β’ Daily situation reports to State/National level β
β β’ Sentinel diseases monitored: Diarrhea, ARI, fever with β
β rash, fever with bleeding, Leptospirosis, Malaria, Dengue β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 2. NATIONAL VECTOR BORNE DISEASE CONTROL PROGRAMME (NVBDCP) β
β [Now NCVBDC - National Centre for Vector Borne Diseases] β
β β
β Role in Floods: β
β β’ Malaria surveillance - blood slide examination / RDT β
β β’ Dengue/DHF case detection, NS1 testing β
β β’ Intensified vector control: Anti-larval operations, β
β Indoor Residual Spraying (IRS), temephos in water bodies β
β β’ Distribution of LLINs (Long-Lasting Insecticidal Nets) β
β β’ Entomological surveillance - vector density monitoring β
β β’ Source reduction: eliminate stagnant water collections β
β β’ Prophylaxis for rescue workers (anti-malarials in high-risk β
β zones) β
β β’ Japanese Encephalitis surveillance in Ahmedabad periphery β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 3. NATIONAL HEALTH MISSION (NHM) / NUHM (Urban) β
β [Critically relevant for Ahmedabad - urban setting] β
β β
β Role in Floods: β
β β’ NUHM Urban Health Centres deployed in flood-affected slums β
β β’ ASHAs mobilized for community outreach, case reporting β
β β’ Mahila Arogya Samitis (MAS) - community health committees β
β activated for relief camp management β
β β’ Janani Suraksha Yojana - ensure safe delivery at camps β
β β’ RBSK (Rashtriya Bal Swasthya Karyakram) - child health β
β screening at camps β
β β’ Drug logistics and supply chain under NHM β
β β’ Telemedicine via NHM infrastructure for remote consultationsβ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 4. NATIONAL DRINKING WATER AND SANITATION PROGRAMS β
β (Jal Jeevan Mission / SBM-U) β
β β
β Role in Floods: β
β β’ Emergency safe water supply coordination β
β β’ Water quality testing - bacteriological, chemical β
β β’ Chlorination of affected wells and tanks β
β β’ Emergency sanitation facilities at relief camps β
β β’ Open defecation free status monitoring in flood areas β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 5. NATIONAL MENTAL HEALTH PROGRAMME (NMHP) β
β β
β Role in Floods: β
β β’ Psychosocial support teams deployed at relief camps β
β β’ Screening for acute stress disorder, PTSD, depression β
β β’ MHPSS (Mental Health & Psychosocial Support) at camps β
β β’ Tele-MANAS helpline activated for flood survivors β
β β’ Special attention: women, children, elderly, rescue workers β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 6. UNIVERSAL IMMUNISATION PROGRAMME (UIP) β
β β
β Role in Floods: β
β β’ Maintain cold chain despite power disruption β
β β’ Catch-up immunization for children displaced from schedule β
β β’ Emergency Measles-Rubella vaccination if outbreak risk β
β β’ Typhoid conjugate vaccine for high-risk populations β
β β’ Hepatitis A vaccination in epidemic-prone zones β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β 7. NATIONAL NUTRITION PROGRAMMES (POSHAN Abhiyaan / NRC) β
β β
β Role in Floods: β
β β’ Monitor nutritional status of children at relief camps β
β β’ RUTF/therapeutic feeding for SAM children β
β β’ Supplementary nutrition distribution β
β β’ Prevent acute malnutrition spikes in flood-affected areas β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
4. INTERSECTORAL COORDINATION, COMMUNITY PARTICIPATION & RISK COMMUNICATION
A. INTERSECTORAL COORDINATION
Urban flooding is a multi-sectoral problem - no single department can manage it alone. The DHO must work within the DDMA framework to coordinate with all line departments.
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
INTERSECTORAL COORDINATION FRAMEWORK - AHMEDABAD FLOOD
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
ββββββββββββββββββββββββββββ
β DISTRICT COLLECTOR β
β (DDMA Chairperson) β
ββββββββββββ¬ββββββββββββββββ
β
ββββββββββββββββββΌβββββββββββββββββββββ
β DISTRICT HEALTH OFFICER β
β (Health Lead / Medical Unit Leader)β
ββββββββββ¬βββββββββββββββ¬ββββββββββββββ
β β
ββββββββββββββΌβββ ββββββββΌβββββββββββββ
β INTERNAL β β EXTERNAL β
β COORDINATION β β COORDINATION β
βββββββββββββββββ βββββββββββββββββββββ
DEPARTMENT ROLE IN FLOOD HEALTH RESPONSE
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
AMC (Municipal) β Urban infrastructure, drainage, water supply
β sanitation repair, shelter management
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Revenue Dept. β Relief camp establishment, resource allocation
β compensations, damage assessment
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
PWD / Irrigation β Structural safety, embankment repair, drainage
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Police / NDRF β Search and rescue, law enforcement, crowd mgmt
/ SDRF β transport of patients
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Fire Dept. β Rescue operations in submerged buildings
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Education Dept. β Schools as relief camps; health posts therein
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
GSDMA (Gujarat β State-level disaster coordination, resources,
State DMA) β SDRF deployment, logistics
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Food & Civil β Food and nutrition at relief camps
Supplies β safe food inspection
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Water Supply β Tanker water, chlorination, testing
Dept. β portable water units
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Animal Husbandry β Control of zoonotic disease risk from
/ Veterinary β displaced animals; carcass disposal
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IMD / CWC β Flood forecasting, early warning dissemination
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Private Hospitals β Surge capacity, specialist care
& Medical β blood donation, diagnostic services
Colleges β
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NGOs / Red Cross β Relief material, volunteers, community health
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Media β Health education, public announcements
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Key mechanism: Emergency Support Functions (ESFs) under IRS (Incident Response System) - the DHO/Dy.CMO serves as Medical Unit Leader in the ESF structure, coordinating with other functional units.
B. COMMUNITY PARTICIPATION
Community is the first responder in any flood. External agencies may take 24-72 hours to reach - the community must bridge this gap.
Rationale (Park's Textbook):
"Those who first respond to an emergency come from within the community. When transport and communications are disrupted, external emergency response may not arrive for days."
COMMUNITY PARTICIPATION FLOWCHART
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β COMMUNITY STRUCTURES MOBILIZED β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ€
β β
β ASHAs / ANMs βββββββΊ Door-to-door surveillance β
β ORS distribution β
β Case reporting to PHC β
β Leptospirosis prophylaxis delivery β
β β
β Mahila Arogya βΊ Relief camp health committees β
β Samitis (MAS) Food safety monitoring β
β (NUHM) Cleanliness in camps β
β β
β Anganwadi Workers βΊ Child nutrition monitoring β
β Immunization tracking β
β Identify SAM children β
β β
β Community Based βΊ Local first aid β
β Disaster βΊ Alert and evacuation support β
β Response Team Hazard mapping participation β
β (CBDRT) (NDMA Guidelines 2024) β
β β
β Ward Committees/ βΊ Identify vulnerable households β
β RWAs βΊ Liaison with AMC β
β β
β Volunteers /NGOs βΊ Relief distribution β
β βΊ Psychosocial support β
βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Key community actions encouraged by DHO:
- Pre-flood: Identify elderly/disabled/bedridden neighbors who cannot self-evacuate
- During flood: Do NOT drink untreated water; do NOT wade through floodwater without footwear
- Post-flood: Clean and disinfect homes before re-entry; boil drinking water; get rid of flood-contaminated food
- Recognize symptoms of Leptospirosis (fever + jaundice + myalgia) and report early
C. RISK COMMUNICATION
Risk communication is a core public health function - faulty or delayed communication leads to panic, non-compliance, and amplified mortality.
βββββββββββββββββββββββββββββββββββββββββββββββββββββββ
RISK COMMUNICATION FRAMEWORK (DHO)
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CORE PRINCIPLES
βββββββββββββββ
Be First β Be Right β Be Credible
Be Empathetic β Be Responsive
KEY MESSAGES TO COMMUNICATE:
BEFORE FLOOD DURING FLOOD AFTER FLOOD
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β’ Flood alert and β’ Do NOT drink β’ Water is unsafe
evacuation orders untreated water until declared
(IMD-based) β’ Move to relief safe
β’ Emergency contact camps (locations) β’ Disinfect rooms
numbers (108, EOC) β’ 108 Ambulance β’ Discard
β’ Prepare flood numbers flood-touched
emergency kit β’ Avoid wading in food
β’ Identify shelter floodwater β’ Watch for fever,
locations β’ Signs of drowning, jaundice, rash -
leptospirosis, report to PHC
snake bite β’ Boil all water
β’ Do NOT use β’ Immunization
electrical catch-up camps
appliances
CHANNELS USED:
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β’ DD Girnar / AIR Ahmedabad (official broadcaster)
β’ WhatsApp / SMS (108, State alert system)
β’ Loudspeaker vehicles (ward-level)
β’ IEC material in Gujarati (posters at camps, walls)
β’ Social media (AMC handles, District Collector handles)
β’ Community leaders, religious figures as messengers
β’ Tele-MANAS / helplines for mental health concerns
β’ Joint Information Centre (JIC) with AMC / District
COUNTERING MISINFORMATION:
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β’ "Dead bodies cause cholera epidemic" β MYTH
(Corps rarely cause outbreaks unless in water source)
β’ "Flood-affected crops are always safe to eat" β FALSE
β’ "All fever after flood is malaria" β FALSE: Leptospirosis,
Dengue, Typhoid must be excluded
Key Risk Communication Tasks for DHO:
- Designate a Public Information Officer (PIO) - trained spokesperson for media briefings
- Daily situation report released at fixed times
- Coordinate with media for factual, non-panic-inducing coverage
- Establish a Joint Information Centre (JIC) with AMC, DDMA
- Use culturally appropriate messages in Gujarati
SUMMARY FRAMEWORK TABLE
| Phase | DHO Priority | Key Program | Key Partner |
|---|---|---|---|
| Prevention | Hazard mapping, immunization, sanitation infrastructure | UIP, SBM | AMC, PWD |
| Preparedness | DM plan, RRT training, pre-positioning supplies, mock drills | IDSP, NVBDCP, NHM | GSDMA, Revenue |
| Response | MMT deployment, surveillance, water safety, vector control, triage, leptospirosis prophylaxis | IDSP, NVBDCP, NUHM | NDRF, Police, Revenue, AMC |
| Recovery | Restore services, catch-up immunization, mental health, AAR | NMHP, UIP, POSHAN | Education, NGOs, Media |
LEGAL FRAMEWORK
- Disaster Management Act, 2005 - mandates DDMA at district level; DHO is its health arm
- Epidemic Diseases Act, 1897 (amended 2020) - powers for disease control during outbreaks
- Gujarat Epidemic Diseases Control Act - state-specific powers
- International Health Regulations (IHR) 2005 - IDSP is India's National Focal Point for IHR notification
KEY POINTS TO REMEMBER (FOR EXAM)
- Most common disease post-flood = Gastroenteritis (acute diarrheal disease)
- Most feared zoonosis post-flood in Gujarat = Leptospirosis (Weil's disease)
- Vector-borne diseases take weeks to reach epidemic levels - early entomological surveillance is key
- Dead bodies rarely cause epidemics (exception: if contaminating water sources)
- DHO functions under DDMA (chaired by District Collector, not independently)
- IDSP is the most critical national program for flood disease surveillance
- Risk communication rule = Be First, Be Right, Be Credible
- Leptospirosis prophylaxis = Doxycycline 200 mg/week for rescue workers and those wading
- Residual chlorine maintained at 0.2-0.5 mg/L in emergency water supply
- NHM/NUHM specifically relevant for Ahmedabad (urban health mission)
Sources: Park's Textbook of Preventive and Social Medicine (23rd Ed.); NIHFW Training Manual for DHOs; NDMA Guidelines for Floods; NIDM PHEDM Module; NDMA Community Based Disaster Risk Reduction Guidelines (2024); Gujarat State Disaster Management Plan 2024-25; Disaster Management Act 2005
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