On-Demand PrEP

For HIV-uninfected patients, pre-exposure prophylaxis (PrEP) using antiretroviral medications is an evidence-based way to prevent new infections among those at high risk for HIV. Typical use is once daily every day, but what about on-demand use?

Chronic Hepatitis B: Confused No More

What’s the diagnostic criteria for chronic hepatitis B (CHB)? What serology findings do these patients have in common? What studies should we monitor in these patients? And how do we differentiate the phases of CHB?