Archive · 8 Dec 2025
Influenza Surge in India Worsened by Air Pollution
India is seeing a lot of flu cases, especially from a type called H3N2, which can make people very sick.
The government is checking if hospitals are ready to handle more patients.
Doctors say that bad air pollution is making the flu worse, especially for kids, pregnant women, and people with health problems.
There is a vaccine that can help, but it's not free for everyone.
The government says the situation is not too bad compared to past years, but they are still taking steps to be prepared.
India is experiencing a surge in influenza cases, primarily driven by the H3N2 subtype.
Air pollution is exacerbating the severity of flu symptoms, particularly in vulnerable groups.
The positivity rate for influenza spiked to 12–13% by late November.
The government is mandating a review of hospital preparedness and conducting mock drills.
A quadrivalent flu vaccine is recommended, especially for high-risk groups.
- Who
- Indian population, particularly in Kerala, Delhi, Maharashtra, Tamil Nadu, Gujarat, and Puducherry
- What
- Surge in influenza cases exacerbated by air pollution
- When
- Late September to present, with a steep upward trajectory
- Where
- India, with significant cases in northern states and specific regions
- Why
- H3N2 subtype causing severe infections, combined with hazardous air pollution levels
- Primary Influenza Strain
- H3N2
- Peak Positivity Rate
- 12–13%
- Affected States
- Kerala, Delhi, Maharashtra, Tamil Nadu, Gujarat, Puducherry
- Recommended Vaccine
- Quadrivalent flu vaccination
- High-Risk Groups
- Elderly, children under five, pregnant women, individuals with chronic conditions
- Government Action
- Review of hospital preparedness, mock drills, national strategy meeting
