CMV is a beta-herpesvirus. Disease is certainly more common in HIV +ve
people, CMV retinitis is a major concern and the reason we have a number
of the anti-herpetic drugs. However it was first detected in transplant
patients when it reactivated and so transplant docs take a long hard look
at it. CMV prevalence is very high indeed and quite variable in
demographics. A common quoted figure is 50% infection rate of
adults, but this changes dramatically with socio-economic status (one US
study found ranges from 40-90% on that scale), with location (one study in
one Alaskan group got 90%+).

The symptoms of CMV disease in a normal person tend to be mild version of
mono, IF it happens at all. Symptoms in the groups considered high risk
categories can be very different...oh and cogenital infections carry
different disease risks too...

Tim
--
When playing rugby, its not the winning that counts, but the taking apart
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