Human Immunodeficiency Virus — From viral entry to AIDS complications

Hepatitis C Virus — A persistent infection with high-yield exam clues

Human T-lymphotropic Virus (HTLV) — The retrovirus behind adult T-cell leukemia

Hepatitis C Virus — A high-yield mix of virology and long-term complications

USMLE Step 1 High-Yield Review 2025 | Must-Know Facts, Tips & Study Strategy

Human Immunodeficiency Virus — The virus that reshapes immunity

Dengue Fever — Understanding primary vs. secondary infection matters

Polyomavirus — JC and BK viruses that test your recall under pressure

Hepatitis C Virus — The chronic infection that quietly damages the liver