HIV is a retrovirus that impairs the immune system and causes AIDS. Learn about symptoms and treatment.
Sexually transmitted infections are caused by bacteria, viruses, and parasites that can spread through sexual contact.
Tuberculosis is highly contagious and can be deadly. Learn about symptoms and treatment.
A type of bacterium, Clostridium difficile (C. diff), causes one of the most common health care-associated infections in the United States.
Cannabis/Marijuana Use Disorder is the continued use of cannabis despite significant negative impact on one's life and health. Learn more about symptoms and treatment.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.