There are all sorts of ways to get an infectious disease—from people and animals, to eating contaminated foods, to environmental exposure.
The human immunodeficiency virus (HIV) impairs the immune system by infecting certain immune cells.
Vaccines aren’t just for kids. Thousands of adults go to the hospital each year for a serious (sometimes even deadly) disease they might have avoided if they had received the vaccination to prevent it.
Coronavirus is a term describes a family of viruses, common in both animals and humans.
A type of bacterium, Clostridium difficile (C. diff), causes one of the most common health care-associated infections in the United States.
Long COVID occurs when symptoms—new, continuing, or recurrent—arise four or more weeks after the initial coronavirus infection.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
Most microbes in and around our bodies are harmless, but some evolve to become deadly threats to individual and public health.
The common cold is probably the most universal illness. It is a viral infection of the upper respiratory tract, which includes the nose and throat area.