A patient develops painful vascular lesions in the mouth and lips. Which specific virus is the most common cause of these oral lesions?
Q1. A patient develops painful vascular lesions in the mouth and lips. Which specific virus is the most common cause of these oral lesions?
Answer: Herpes simplex type 1
Explanation: Herpes simplex type 1 causes oral lesions. Type 2 is primarily responsible for genital herpes, though both belong to the same family.