A type of bacterium, Clostridium difficile (C. diff), causes one of the most common health care-associated infections in the United States.
Pneumonia is an infection that inflames air sacs, which may fill with fluid, in the lungs. Learn about symptoms and treatment.
Parasitic diseases are infections caused by organisms that are often microscopic. Learn about symptoms and treatment.
A virus that is transmitted to humans by the bite of infected ticks.
A serious and potentially fatal disease caused by parasites that enter the body via mosquito bites. People with malaria typically experience fever, chills, headache, nausea, and fatigue.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
Sepsis is a condition caused by an overwhelming immune response to an infection in the body. Learn about symptoms and treatment.
Long COVID refers to new or recurring symptoms that occur four or more weeks after an infection with SARS-CoV-2, the virus that causes COVID-19.
Lyme disease is a tick-borne infection that can lead to neurological complications. Learn about symptoms and treatment.
Most microbes in and around our bodies are harmless, but some evolve to become deadly threats to individual and public health.