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Frequent shedding of human herpesvirus 6 in saliva
G B Harnett1, T J Farr, G R Pietroboni
1Virus Laboratory, Queen Elizabeth II Medical Centre, Nedlands, Western Australia.
Abstract:
We have previously reported the isolation of HHV-6 from saliva samples. Because these isolations were made in PHA-stimulated lymphocytes from healthy adults, which may occasionally contain endogenous HHV-6, it was desirable to repeat this work using cord blood lymphocytes. In this study 18 isolations of viruses provisionally characterized as HHV-6 were made from 19 saliva samples by centrifugally enhanced inoculation into PHA-stimulated cord blood lymphocytes. HHV-6 was not found in 10 pernasal aspirates, 50 endocervical swabs, or 30 male urethral swabs. It is concluded that HHV-6 is usually present in the saliva of most adults and that this affords a possible explanation of the high infection rate with this virus in young children.