Los virus de la influenza
Existen dos tipos de virus de influenza (gripe): A y B. Los virus de influenza A y B que generalmente se diseminan entre las personas (virus de influenza humana) todos los años causan epidemias de influenza estacional. Los virus de influenza tipo A pueden dividirse en diferentes subtipos dependiendo de los genes que constituyen las proteínas de superficie. Durante el transcurso de la temporada de influenza, hay circulación de los diferentes tipos (A y B) y subtipos (influenza A) que provocan enfermedades.
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Influenza (Flu) Viruses | Seasonal Influenza (Flu) | CDC
Understanding Flu Viruses
There are two main types of influenza virus: Types A and B. The influenza A and B viruses that routinely spread in people (human influenza viruses) are responsible for seasonal flu epidemics each year. Over the course of a flu season, different types (A & B) and subtypes (influenza A) of influenza circulate and cause illness.
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Influenza (Flu) Viruses
There are two main types of influenza (flu) virus: Types A and B. The influenza A and B viruses that routinely spread in people (human influenza viruses) are responsible for seasonal flu epidemics each year. Influenza A viruses can be broken down into sub-types depending on the genes that make up the surface proteins. Over the course of a flu season, different types (A & B) and subtypes (influenza A) of influenza circulate and cause illness.
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