show host. he talked about fatal outcomes as a result of the measles vaccine. this is a vaccine that has been used a lot all over the world so when you have something like that, you have a lot of data and there can be adverse reaction but let me give you context, at least when it comes to severe allergic reactions. the idea you can be struck by lightning, you can see number 1 in, 14,000. die in a plane crash, one out of 188,000. a severe allergic reaction to a measles vaccine is literally one in a million. i'm not just putting the numbers up there, that's data. can you develop a rash, temp temperature, soreness, symptoms after a having seen? absolutely. the vaccine stimulating your immune system to work, that can make you feel cruddy for a few days but it's not the severe reaction the radio show host was talking about. >> and it can keep you from guettel measles so how important is it not to just vaccinate your