WHAT: 18th annual Drive-Thru Flu Shot event. One shot includes both the seasonal and H1N1 vaccination.WHEN: Saturday, October 20, 2012, 8 a.m.-1 p.m.It’s one of the only events of its kind in the region. For the 18th year, the medical staff will be offering free flu shots to everyone who drives up. Drivers and passengers never leave the comfort of their vehicles. 5,000 flu shots, already stored in pharmacy refrigerators, are available.An annual flu shot is recommended for almost everyone. People who should not receive the vaccine include those who have an allergy to eggs (used to make the vaccine) and anyone who has ever been paralyzed with Guillain Barre’ Syndrome. People who have a cold or fever should wait until they have recovered. Women who are pregnant or may be pregnant should check with their health care provider.“Late October to early November is the best time of year for a flu vaccination,” according to William Barkman, M.D., pulmonary and critical care specialist and chief of staff at The University of Kansas Hospital. “Since the body’s immune system takes time to respond to vaccine, it should be given one to two weeks before the flu season begins in order to stimulate enough antibodies to prevent infection.”No appointment is necessary for the free flu shot event. Simply drive to 36th and Rainbow Boulevard and follow the signs. Those 8 and over are eligible for the vaccination. Those under 8 should see their primary care physician. Although the flu shots are free, The University of Kansas Hospital will accept donations of non-perishable food items for Harvesters at the Drive-Thru event.