Don’t look now, but cold and flu season is just around the corner. During the months of August and September, the private manufacturers of the annual influenza vaccine are shipping supplies out to thousands of locations around the country. An important discussion crops up among healthcare workers every year at this time about whether or not to get the flu shot. The most recent data shows that flu shot coverage for healthcare workers overall was around 64%, while over 89% of registered nurses elected to receive the immunization. This year’s flu shot is designed to protect against three strains of flu virus, including the H1N1 virus, and while it is not infallible, when the flu vaccine formulation is close to the circulating flu viruses, the shot is over 70% effective. According to the Mayo Clinic, the flu shot is the best defense against contracting seasonal influenza.