2019-04-26T13:28:57
Is the 2009 H1N1 swine flu vaccine safe? No vaccine is 100% safe for everyone. People with allergies to eggs, for example, can't take flu vaccines because eggs are involved in the manufacturing process. And flu vaccines cause mild but common reactions. About one in three people get a sore arm from the shot, some with a little redness or even swelling. Some 10% to 15% of people feel tired or get a headache; some may even run a low fever. After weighing the benefits vs. the risks, the health agencies of the U.S. government have launched the most massive vaccination campaign in history to fight the 2009 H1N1 swine flu. The CDC is using simple, direct messages -- including advertising and press conferences -- to encourage people to get the vaccine.