<unk> -1 and<unk> -2 can be transmitted sexually, by blood to blood contact (e.g. by blood transfusion or sharing needles when using drugs) and via breast feeding.
Human T-lymphotropic virus
Kaposi's sarcoma-associated herpesvirus
Oncolytic adenovirus
Trichodysplasia spinulosa polyomavirus
Oncovirus
Human betaherpesvirus 7
Human betaherpesvirus 5
Xenotropic murine leukemia virus–related virus