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What Kind of Flu Did You First Get? It Matters
TUESDAY, Feb. 11, 2020 (HealthDay News) — The first type of influenza virus you’re exposed to may set your lifetime ability to fight the flu.
Researchers with McMaster University and University of Montreal found that being born in an H1N1 year or an H3N2 year matters. Following a phenomenon known as antigenic imprinting, the study revealed that early exposure to one of these two flu strains permanently affects your immunity...