good material thanks price of amoxicillin Flu shots cannot cause you to get sick, McDonald said. An influenza vaccination helps a person build up an immunity so they donâÂÂt get sick, he said. (Antibodies develop that protect against influenza virus infection about two weeks after vaccinating.) The virus that causes the flu and is in the vaccination is killed so that it canâÂÂt replicate, McDonald said. ThatâÂÂs unlike the shingles vaccination, which is a weakened live virus.à必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])