Overview
- National surveillance recorded an increase in influenza positivity from 33.3% to 42.2% between epidemiological weeks 18 and 19, showing a rapid rise in respiratory virus detections.
- ANLIS Malbrán has identified 11 new J.2.4.1 (K) H3N2 sequences, bringing the national total to 194 detections with 161 recorded so far in 2026.
- Provincial reports show rising outpatient respiratory consultations and localized severe cases, including a confirmed influenza A death in Rosario, while health officials say hospitals are preparing but not yet overwhelmed.
- Health authorities are intensifying targeted vaccination for priority groups and urging basic prevention such as ventilation, hand hygiene, staying home when sick, and mask use for symptomatic people.
- Public-health teams warn the situation could peak in the coming weeks and note parallel threats in some provinces—psittacosis and leptospirosis in Santa Fe and ongoing RSV risk for infants—that raise pressure on clinics and call for early care for vulnerable people.