Home > Infectious Disease > Flu Vaccination Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Feb 15, 2009 by CNelson, Views: 2555 Flu Vaccination, Dr. Carolyn Nelson. Flu vaccination is the best way to prevent the flu. It reduces your chance of getting the flu by 70-90%. Groups at high risk should get the vaccine: Pregnant women, children over 6mo, people over age 50, people with chronic medical conditions.