Mar 5, 2024 · Germs live everywhere. There are germs, also called microbes, in the air; on food, plants and animals; and in the soil and water. Germs are on just about every surface, including …

Apr 8, 2025 · Overview Infectious diseases are illnesses that happen when tiny living beings get inside the body and multiply. Bacteria, viruses, fungi and parasites are examples of organisms …

Apr 25, 2025 · Probiotics and prebiotics are two parts of food that may support gut health. Probiotics are specific living microorganisms, most often bacteria or yeast that help the body …

Jun 14, 2025 · A Helicobacter pylori infection is a common stomach infection. It's caused by a germ called Helicobacter pylori, a bacteria also known as H. pylori. More than half the people …

Feb 4, 2023 · Bacteria cause bacterial infections. Viruses cause viral infections. Antibiotic medicines kill or keep many bacteria from growing but don't treat viruses. Antiviral medicines …

Dec 20, 2024 · Oral thrush, also called oral candidiasis (kan-dih-DIE-uh-sis), is a condition in which the fungus Candida albicans builds up in the mouth. It's natural for candida, a yeast, to …

Apr 30, 2025 · Salmonella infection (salmonellosis) is a common bacterial disease that affects the intestinal tract. Salmonella bacteria typically live in animal and human intestines and are shed …

Aug 16, 2025 · Food poisoning, a type of foodborne illness, is a sickness people get from something they ate or drank. The causes are germs or other harmful things in the food or …

Feb 10, 2023 · Sepsis is a serious condition in which the body responds improperly to an infection. The infection-fighting processes turn on the body, causing the organs to work poorly. …

Athlete's foot is contagious and can spread through contact with an infected person or from contact with contaminated surfaces, such as towels, floors and shoes. You can also spread it …