The common cold during the winter is rarely influenza.
Influenza lasts longer, typically 10 days, and
is more severe than the common cold. Yet,
in common usage nearly every short-term cold is called the flu, including here
in California the stomach flu. Testing
shows that influenza isn’t common with the exception of children. Children
because of their lack of exposure to
influenza virus and other bacteria at a much higher risk than their parents of
catching a cold and getting the flu.
So other than giving a flu shot to school
kids, it is not a good choice to be vaccinated, as the below article confirms.
Vaccines to prevent influenza in healthy adults
T, Di Pietrantonj C, Rivetti A,
Bawazeer GA, Al-Ansary LA, Ferroni E