Increased HHV-6 IgG antibody levels were found in 13 of 35 (37%) individuals with unexplained encephalitis, and increased HHV-6 IgM antibody levels, a response more indicative of recent infection ...
An unusual variant of measles can be seen in previously vaccinated individuals, infants with maternal IgG ... of HHV-6 and -7 infections is difficult owing to the limited availability of antibody ...