What strains of HPV are associated with verruca vulgaris?

Verruca vulgaris, commonly known as common warts, is primarily caused by certain strains of the human papillomavirus (HPV). The most relevant strains associated with verruca vulgaris are HPV types 2 and 4, with type 40 occasionally involved as well. These strains tend to infect keratinocytes, leading to the characteristic proliferation of skin cells that results in the formation of warts.

The presence of HPV 2 and HPV 4 is especially significant as they are frequently isolated from cases of verruca vulgaris in clinical settings. This direct correlation underscores why the choice that includes these specific strains is considered accurate. Understanding the specific HPV types associated with different forms of warts is crucial for diagnosis and treatment in dermatology and dentistry, particularly in pediatric populations where these conditions are prevalent.