I don't know if this will help anyone, but my sister is an expert in this area. She is an infectious disease epidemiologist with a couple decades of experience.

I don't know if this will help anyone, but my sister is an expert in this area. She is an infectious disease epidemiologist with a couple decades of experience. She was the head of vaccine-preventable epidemiology for one of the states in the U.S., and is now the head of epidemiology data and informatics for that state. Over the holidays, I was asking her about bird flu because some of the things I was reading were frightening, but I wasn't sure what to make of them. When I showed her this paper that is linked to in another comment here https://www.nejm.org/doi/full/10.1056/NEJMc2415890 https://www.nejm.org/doi/full/10.1056/NEJMc2415890, she responded with this: Everyone will react differently to the flu. There are kids in her exact situation that have that kind of reaction to the normal flu. However, it is still concerning. If the virus does cause more severe illness overall and it does mutate to become person-to-person, we are in trouble. That is the hardest thing about public health—you just don't know which way things will swing. So you are always on the edge of either overreacting or underreacting.