About a year ago my grandson was bitten by this tick and he is now allergic to red meat, or any food with cooked in animal fat. He is 8 years old. He has to have 2 EpiPens at all times, one for school and the other he has to carry. Here is an article that goes into detail. It's something we need to be aware of here in the South East USA when we are out in the field.
http://www.sciencedaily.com/releases/2014/02/140220102727.htm
http://www.sciencedaily.com/releases/2014/02/140220102727.htm