>Basically, the vaccines dont work with prior exposure The FDA recommends it for males under 45 now. It does prevent infection from new exposures. In time I b

>Basically, the vaccines dont work with prior exposure The FDA recommends it for males under 45 now. It does prevent infection from new exposures. In time I bet that we will find it reduces cancer incidence even in those infected before vaccination. Those studies will take years to complete and it is too early to tell. When the vaccine was first available, it was rationed, and the highest priority was for young girls before they become sexually active since they have the highest benefit.