Influenza A

Seasonal influenza is characterized by a sudden onset of fever, cough (usually dry), headache, mu...

No antiviral-resistance viruses were found in the circulating influenza viruses. ○ The number of ...

Influenza, commonly known as "the flu", is an infectious disease caused by influenza viruses. Sym...

influenza, also called flu or grippe, an acute viral infection of the upper or lower respiratory ...

Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs...