Evergreen medical profile
Seasonal influenza
This page is medical background from WHO/CDC citations. It is not current-event intelligence.
- Pathogen
- Influenza A and B viruses
- Transmission
- Respiratory droplets and aerosols (WHO/CDC).
- Incubation
- About 1–4 days (CDC).
- Typical symptoms
- Fever, cough, sore throat, runny nose, muscle aches, fatigue.
- Treatment
- Supportive care; antivirals for some patients (CDC).
- Vaccine
- Seasonal vaccines recommended for many populations (WHO/CDC).
- Historical fatality
- Usually low in the general population; higher in older adults and some comorbidities.