ABSTRACT
PATHOGEN Human papillomavirus (HPV) DNA virus 1, 2, 4, and 7 cause butchers’ warts. There are now more than 90 different known types of HPV. HPV associated with skin lesions are classifi ed as cutaneous HPV, which are different from the genital HPV associated with gynecological lesions. The difference between cutaneous types and genital types of HPV is that the cutaneous types do not have the E5 open reading frame (except for a few cutaneous types) compared with the genital types.
