Office worker Kim, 57 years old, was told during every health checkup that he was a hepatitis B carrier. Although the virus ...

Systematic review of 8 studies in more than 7,700 serodiscordant couples in 25 countries finds people living with HIV with viral loads less than 1,000 copies/mL have almost zero risk of transmitting ...

Reviewed by Carrie D. Johnston, MD, MS, Assistant Professor in the Division of Infectious Diseases at Weill Cornell Medical College in New York City. "Medical Journeys" is a set of clinical resources ...

Some viruses that make us sick are cleared by the immune system within days, while others lurk in our bodies for a lifetime and reemerge later to cause new problems. How and why viral levels in the ...