Overview
- Peru’s Health Ministry confirmed two H3N2 subclade K infections in Lima in minors and issued a national epidemiological alert with expanded monitoring.
- EsSalud advised mask use when ill or caring for sick people, frequent handwashing, ventilation and avoiding crowds, and it continues prioritizing influenza shots for children, older adults, pregnant people and those with chronic conditions.
- The WHO has tracked an unusually rapid rise of the subclade K strain across dozens of countries, as Mexico’s INER confirmed the country’s first case and regional systems in Colombia and Bolivia tightened surveillance.
- Some jurisdictions report no local transmission yet, with Puno’s health authority saying a suspected traveler tested negative while maintaining heightened vigilance.
- Current tetravalent vaccines are expected to provide partial protection—especially against severe illness—while antivirals help if started early and antibiotics do not treat influenza.