What is the time span from receiving seasonal flu shot to H1N1 vaccine?

The H1N1 vaccine is a type of flu vaccine that protects against the H1N1 strain of the influenza virus. The seasonal flu shot is a different vaccine that protects against a variety of strains of the flu virus, including the H1N1 strain.

People who receive the seasonal flu shot do not need to get the H1N1 vaccine separately, as the seasonal flu shot already provides protection against the H1N1 strain.

If someone has not received the seasonal flu shot, they can get the H1N1 vaccine on its own. The H1N1 vaccine is available at doctor's offices, clinics, and pharmacies.

It is important to note that the H1N1 vaccine is not a substitute for the seasonal flu shot. People who have not received the seasonal flu shot should still get it, even if they have received the H1N1 vaccine.