CROSSTALK. “There is significant crosstalk between chronic viral infections, as well as between viral infections and other types of infection. For example, HIV and HCV coinfection worsens the prognosis of both infections. The impact of persisting infections is not always negative. For example, infection by herpesviruses (HHV-6 or HHV-7) or GB virus C may inhibit HIV progression in some settings.”
http://www.sciencedirect.com/science/article/pii/S0092867409007831