Seropositivity rates for non-oncogenic or oncogenic HPV types did not differ between cases and controls.

例组和对照组非致瘤和致瘤HPV的阳性率没有差异性。

HPV 49 belongs to the epidermodysplasia verruciformis (EV)-HPV group.

49类突属于疣状表皮增生不良之类突。