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Karnataka H1N1 tally hits 4,212 in 2026 as monsoon surge peaks
Karnataka recorded 4,212 lab-confirmed H1N1 cases through Aug. 22, exceeding the 2024 total and closing in on 2025's count. The health department says it is a monsoon surge, not an outbreak, and has stockpiled PPE and antivirals.
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The Karnataka Health Department recorded 4,212 laboratory-confirmed influenza cases through Aug. 22, a count that already exceeds the 3,903 cases reported in all of 2024 and sits within striking distance of the 4,583 cases logged in 2025. In a press note, the department said the rise is part of a standard cyclical monsoon surge, not an outbreak. Influenza in Karnataka follows two seasonal peaks – January to March and July to September – and the current data tracks those historical patterns, officials said.
Health Minister U.T. Khader chaired a review meeting with senior state and district health officials and said the state's medical machinery is fully equipped with adequate infrastructure and essential medicines to handle any increase in cases. The department's Integrated Health Information Platform, known as IHIP, showed MSU-Greater Bengaluru Authority as the worst-hit area with 2,070 cases. Bengaluru Urban followed at 1,011 cases, and Udupi at 300 cases. The remaining 831 cases spread across 29 other districts, meaning the Bengaluru region accounts for roughly 73% of the state total.
The department has strengthened Influenza-Like Illness (ILI) and Severe Acute Respiratory Infection (SARI) surveillance under WHO and Union Health Ministry guidelines. Designated sentinel sites in the ICMR-NCDC network and Viral Research and Diagnostic Laboratories are handling sample collection and testing. Health facilities have been told to stock PPE, N95 masks and Oseltamivir, the antiviral used against H1N1. Private hospitals must report all cases through the IHIP platform and follow state protocols for screening, testing and treatment.