> Flu shots can make lung function worseIn 1998, a study of 262 adults in a double-blind, placebo-controlled, crossover trial evaluated the effect of flu shots in asthma patients. Subjects kept a record of daily respiratory symptoms, medications, doctor visits and peak expiratory flow (PEF) before and after the vaccination. PEF readings measure of how well the lungs are functioning - an increase in PEF means lung function has improved, and a decrease means that lung function has gotten worse. Of the 255 patients with paired data, approx. 7% had worse lung function after they got a flu shot. In fact, 11 saw a reduction in PEF greater than 20% and 8 had a decline of >30%. > Flu shots don't protect children with asthmaVaccinating asthmatic children against influenza is unlikely to protect...