The sustained growth of influenza A (H3N2) throughout Argentine territory generates surveillance by health organizations. Everything you need to know about prevention, symptoms and actions to avoid.
There are already 23 jurisdictions in the country that register an increase in cases of this influenza, with a strong concentration in the Argentine Northwest and in the central region.1
Symptoms
Among its main symptoms are fever (or low-grade fever), cough, sore throat, nasal congestion, muscle pain,
headache, intense fatigue and chills. Most cases are managed with rest, hydration and antipyretics.
It is recommended not to self-medicate with antibiotics: influenza is viral (antibiotics are used only if there is an associated bacterial infection).
One of the most effective tools to combat this virus is the application of flu vaccines, specifically for high-risk people:
• Over 65 years old
• Young children (especially those under 2–5 years old)
• Pregnant
• People with diabetes, COPD/asthma, heart disease, obesity, kidney failure
• Immunocompromised people
• Health personnel
Prevention
1) Flu vaccination
It is the most effective measure to prevent complications. The WHO published the recommendations for the southern hemisphere vaccine 2026.
In Argentina ANMAT reported recommended strains for 2026 flu vaccines (according to platform). The vaccine is free for prioritized groups.
2) Daily care measures
• Frequent hand washing / alcohol gel
• Ventilate environments
• Avoid close contact if there are symptoms
• Cover your cough/sneeze with your elbow
• Do not share mate, glasses, cutlery
• Wear a mask if you have symptoms (community care)
3) Isolation of cases
If you have symptoms:
• stay home until you are better and fever-free
• avoid visiting older people or babies
