Major Strains of Influenza

Introduction:

Influenza is classified into three types, A, B and C. All other flu infections of type A are listed by subtypes. Influenzas grouped in to B and C types are not that common, so subtypes have not been identified.

Listing human influenza viruses involves identifying the virus type and making vaccines for the population to prevent massive outbreaks. Influenza is a killer and historically is responsible for millions of deaths around the planet.

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