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Can influenza vaccines give me influenza?


Can influenza vaccines give me influenza?


The inactivated influenza vaccine cannot give you influenza. This vaccine contains killed influenza viruses that cannot cause infection. The live attenuated influenza vaccine given as a nasal spray contains weakened influenza viruses. Common reactions to the live vaccine include mild symptoms such as a runny nose, nasal congestion, cough, sore throat, and fever. These symptoms are less severe than those from influenza infection and last a shorter time. As a precaution, people with weakened immune systems should not get the live vaccine.

Date last reviewed: 
Wednesday, Nov 03, 2021