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Bangladesh Dengue Alert — Aedes Mosquito Breeding Risk Index

Real-time dengue outbreak risk scores for all 64 districts of Bangladesh. Track Aedes mosquito breeding conditions based on rainfall, humidity, and temperature.

Last Scientific Observation: Thursday, September 10, 2026 at 2:52 PM
Overall National Vector Risk Status

Nationwide Dengue & Mosquito Breeding Risk Assessment

Risk Level: High (83%)

High temperature (29-32°C), relative humidity exceeding 78%, and recent showers hold nationwide vector breeding risk at 83% (High). Household container sanitation is strongly advised.

Analysis evaluated strictly in accordance with WHO Climate-Based Vector Breeding Risk Guidelines.
Daily Vector Risk Leaderboard

Today's Top 10 Highest Dengue Breeding Risk Districts

WHO Vector Standard

Regional Vector Outbreak Index

বরিশালHigh (78%)

High Aedes container density; daytime mosquito net use mandatory.

চট্টগ্রামHigh (83%)

High Aedes container density; daytime mosquito net use mandatory.

ঢাকাHigh (79%)

High Aedes container density; daytime mosquito net use mandatory.

খুলনাHigh (82%)

High Aedes container density; daytime mosquito net use mandatory.

ময়মনসিংহSevere (88%)

Massive vector breeding; immediate larvicide spraying & daily container emptying required.

রাজশাহীSevere (87%)

Massive vector breeding; immediate larvicide spraying & daily container emptying required.

রংপুরSevere (88%)

Massive vector breeding; immediate larvicide spraying & daily container emptying required.

সিলেটSevere (86%)

Massive vector breeding; immediate larvicide spraying & daily container emptying required.

7-Day Rainfall Accumulation vs. Vector Breeding Risk

Demonstrating how rainfall accumulation creates container breeding sites that accelerate larval density 2-3 days post-storm

Larval Model
Daily Rainfall (mm)
Aedes Breeding Risk Score (%)

Annual Dengue Outbreak Seasonal Pattern

Annual seasonal progression highlighting Bangladesh's post-monsoon dengue outbreak peak (Jun-Nov)

Peak Dengue Season (Jun - Oct)
Heavy rainfall container storage combined with warm humidity creates peak vector breeding.
Low Season Control Period (Nov - Feb)
Lower ambient temperatures reduce larval growth rates; maintain dry container practices.

WHO Dengue Vector Breeding Risk Classification

Severe / Extreme Risk (Score: 85-100%)

Massive vector breeding; immediate larvicide spraying & daily container emptying required.

High Risk (Score: 70-84%)

High Aedes container density; daytime mosquito net use mandatory.

Moderate Risk (Score: 50-69%)

Elevated risk in urban stagnant water bodies and construction zones.

Low Risk (Score: < 50%)

Subdued vector activity; maintain baseline sanitation protocols.

Household Vector Destruction Protocols

  • Discard standing water from flower tubs, buckets, and discarded tires every 3 days.
  • Use mosquito nets or repellents during daytime, especially early morning and late afternoon.
  • Apply larvicide (such as BTI or Temephos) in unsealable water holding containers.
  • Keep household premises dry, clean, and well-ventilated.

Clinical Symptom Protocol & NSAID Warning

Sudden high fever (101-104°F), retro-orbital eye pain, severe myalgia, and maculopapular rash require urgent Dengue NS1 testing.

CRITICAL WARNING: Administer ONLY Paracetamol for fever management. Avoid all NSAIDs (ibuprofen, naproxen, aspirin) as they exacerbate capillary permeability and severe internal bleeding risks.

Biological Dynamics of Climate & Aedes Aegypti Life Cycle

Under tropical humidity conditions (>78%) and warm temperatures (29-32°C), Aedes aegypti larval metamorphosis shrinks from 14 days down to just 7 days. Abohawa evaluates daily atmospheric vapor pressure and rainfall container retention to generate accurate 64-district outbreak warnings.

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