Overview
- Peru’s health minister said six influenza A H3N2 infections have been confirmed and classified as subclade K.
- The health ministry reports continuous epidemiological monitoring and urges flu vaccination for older adults, young children, and pregnant people.
- Argentina has confirmed three pediatric and adolescent cases, aligning with reports that subclade K disproportionately affects younger patients.
- Specialists describe rapid international spread and high transmissibility for this lineage, with some cases showing gastrointestinal symptoms alongside respiratory illness.
- Experts note current flu vaccines still provide protection, though possibly reduced against subclade K, and an updated formulation including this variant is planned for use from April.