this is from the morbidity and mortality weekly report , dated march 14 , 1986 , issued by the centers for disease control and prevention , and i quote : since a large proportion of seropositive asymptomatic persons have been shown to be viremic , viremic means having the virus in their blood ; but remember that they only found anywhere from 56-60 % with actual hiv , and im not sure that constitutes a large percentage since a large proportion of seropositive asymptomatic persons have been shown to be viremic , all seropositive individuals , whether symptomatic or not , must be presumed capable of transmitting this infection .