Cannabis and Viral Load in HIV-Positive Patients and Patients with Hep C Infections

"Short-term use of smoked cannabis did not affect viral load in 15 HIV-positive patients and also is associated with adherence to therapy and reduced viral loads in 16 patients with hepatitis C infections."

Source: 

American Medical Association, Council on Science and Public Health, "Report 3 of the Council on Science and Public Health: Use of Cannabis for Medicinal Purposes, December 2009.