Support WBURSwine Flu Vaccine Trials Begin Testing VolunteersKathleen MastersonAugust 10, 2009 ShareAt Emory University in Atlanta, Linda Potter receives a shot of H1N1 flu vaccine during one of several clinical trials of the new vaccine. (AP)
At Emory University in Atlanta, Linda Potter receives a shot of H1N1 flu vaccine during one of several clinical trials of the new vaccine. (AP)