Pieces of genes can be inserted into the genetic material of prokaryotes so that they will make the protein products encoded in the genes or copies of the genes themselves
a. vitamins.
b. everyday.
I'm not 100% sure on b. but a. has to be vitamins.
i think that the body does its just that the antibodies arent strong enough to combat the virus completely
True, communication most noticeably so. Transport has too