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

病组和对照组非致瘤型和致瘤型HPV的阳率没有差异。

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

第49型人类突病毒是属于疣状表皮增生不良型之人类突病毒。