Influenza is a more serious disease caused by viruses that are different from cold viruses. People catch colds mainly indoors. Being over-tired, in bad shape, and perhaps getting chilled seem to give viruses a better foothold in our bodies. If you have asthma, chronic bronchitis, emphysema, or any other chronic lung illness, you should call your doctor at the beginning of any cold. Usually the tissue heals within two weeks, but sometimes it is damaged.
Flu vaccine is made from dead viruses, so no one can get influenza from a flu vaccination.
People who are allergic to eggs sometimes react to the vaccine. If you are allergic to eggs you should only have the vaccine if your doctor thinks it is necessary. People at high risk should be vaccinated each year to make sure they are protected for any new viral strains. Make a difference. Support the Lung Association.