Exanthem subitum (roseola infantum) with vesicular lesions.

We report a 7-month-old boy who developed vesicular lesions during the course of exanthem subitum. Human herpesvirus-6 (HHV-6) DNA was detected both in the skin lesions and in the throat, by polymerase chain reaction. IgG and TgM antibodies against HHV-6 were 1:10 and <1:10. respectively on the tenth day of the illness, and >1:640 and 1 10 on the twenty-second day, respectively. These results suggest that this was primary HHV-6 infection. [ABSTRACT FROM AUTHOR]