>As far as I know, virions have a plasma half-life of about 6 h. Infected CD4+ lymphocytes have a half-life of less than 2 days.<
According to JP Sommadossi, the half-life of the HIV virions in the plasma is about one day. The half-life of infected cells is less pertinent to the quiz question in #msg-27345919 insofar as the measurements in question are taken in the plasma.