Which statement is true regarding the common locations of herpes viruses?

Which statement is true regarding the common locations of herpes viruses?

• A. HSV-1 is commonly found in the mouth; HSV-2 in the genitalia
• B. HSV-1 is commonly found in the genitals; HSV-2 in the mouth
• C. HSV-1 is commonly found in the hands; HSV-2 in the feet
• D. HSV-1 is commonly found in the lungs; HSV-2 in the brain

Answer: (A)

Herpes simplex viruses have typical sites: HSV-1 is classically linked to the mouth and facial area, causing oral herpes, while HSV-2 is classically linked to the genital area, causing genital herpes. This reflects how they’re most often transmitted—HSV-1 mainly through oral contact and HSV-2 mainly through sexual contact. While cross-infection can occur, genital infections are more often HSV-2 and oral infections HSV-1. The viruses lie latent in sensory ganglia (trigeminal for HSV-1, sacral for HSV-2) and tend to reactivate in the same region, which is why recurrences occur where initial infection happened. Sites like hands, feet, lungs, or brain are not typical primary locations for these viruses.

Herpes simplex viruses have typical sites: HSV-1 is classically linked to the mouth and facial area, causing oral herpes, while HSV-2 is classically linked to the genital area, causing genital herpes. This reflects how they’re most often transmitted—HSV-1 mainly through oral contact and HSV-2 mainly through sexual contact. While cross-infection can occur, genital infections are more often HSV-2 and oral infections HSV-1. The viruses lie latent in sensory ganglia (trigeminal for HSV-1, sacral for HSV-2) and tend to reactivate in the same region, which is why recurrences occur where initial infection happened. Sites like hands, feet, lungs, or brain are not typical primary locations for these viruses.