Flu
Also called: influenza
A common viral infection that can be deadly, especially in high-risk groups.
- Spreads in various ways
- Partly preventable by vaccine
- Usually self-treatable
- Usually self-diagnosable
- Lab tests or imaging rarely required
- Short-term: resolves within days to weeks
The flu attacks the lungs, nose and throat. Young children, older adults, pregnant women and people with chronic disease or weak immune systems are at high risk.
Consult a doctor for medical advice
Sources: Mayo Clinic and others. Learn more
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