Title: Flu season has arrived – and so have updated flu vaccines
Article Snip: "...In the U.S., all flu vaccines for the 2025-2026 season will be trivalent – which means they are formulated to protect against the three main groups of influenza virus strains. These are an A (H1N1) virus, an A (H3N2) virus and a B/Victoria virus. ..."
Reference: theconversation.com
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