<unk>  1 and 2 <unk> -1 and<unk> -2), also known by their taxonomical names Human alphaherpesvirus 1 and Human alphaherpesvirus 2, are two members of the human Herpesviridae family, a set of new viruses that produce viral infections in the majority of humans. Both<unk> -1 (which produces most cold sores) and<unk> -2 (which produces most genital herpes) are common and contagious. They can be spread when an infected person begins shedding the virus. About 67% of the world population under the age of 50 has<unk> -1. In the United States, about 47.8% and 11.9% are believed to have<unk> -1 and<unk> -2, respectively. Because it can be transmitted through any intimate contact, it is one of the most common sexually transmitted infections.
Herpes simplex virus
Cytomegalovirus
Varicella zoster virus
Molluscum contagiosum virus
Mumps virus
Human herpesvirus 6
Treponema pallidum
Coxsackie B virus