Concurrent oral and genital infection with an identical strain of herpes simplex virus type 1. Restriction endonuclease analysis.

The virus isolated from concurrent genital and oropharyngeal lesions of a male patient was identified as herpes simplex virus type 1 (HSV-1) by rate neutralization and biological marker tests. Analysis by digestion with restriction endonuclease revealed that isolates from the penis and anterior pillars had identical patterns, similar to those of prototype HSV-1. Data indicate that a person can be infected with the same strain of HSV-1 in two different sites at the same time.