Another presentation emphasized concerns related to increasing transmission of drug resistant virus. In this case the group from the University of North Carolina studied over 200 patients followed in a cohort. They found that 170 were taking antiretroviral therapy when interviewed about behaviors, with 60% not adhering closely with their treatment regimen. Moreover, just under half had detectable viral load at the time they were surveyed. When questioned about sexual activity it was found that approximately 50% had unprotected sex in the previous year and this was the case with increasing frequency in those who admitted to poor adherence with their medical regimen. Moreover, drug resistant virus was commonly among those with drug resistant virus. Together this data suggests that the risk of transmission of resistant virus may be high among select groups of HIV-infected individuals.
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