An introduction to gastrointestinal tract CMV disease.

Cytomegalovirus (CMV) causes chronic infection that can manifest disease in many organs. The gastrointestinal (GI) tract is a common location for CMV disease. This article reviews the signs, symptoms, diagnosis, treatment, and prevention of GI CMV disease.

Oral preexposure prophylaxis to prevent HIV infection: clinical and public health implications.

This article reviews the use of combination emtricitabine (FTC)/tenofovir as preexposure prophylaxis (PrEP) for HIV-negative patients at high risk of acquiring HIV, including heterosexual men and women, men who have sex with men, and IV drug users. When used with classic prevention strategies such as condoms, PrEP has been found effective in reducing the risk of HIV transmission.