New Strain Of Flu 2025. The southern hemisphere 2025 vaccine will contain one new strain for the influenza a(h3n2) subtype virus component. Looking specifically at flu activity, as of late december, flu cases have risen quickly since early december across the country.


New Strain Of Flu 2025

With the following strain compositions: The world health organization (who) today announced the recommendations for the viral composition of influenza vaccines for the 2025 influenza season in the southern.

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