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 the human …

Apr 8, 2025 · Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. These …

Dec 11, 2024 · Frequent hand-washing is one of the best ways to keep from getting sick and spreading illness. Find out when to wash your hands and how to do it right. Germs get on your hands from …

Las bacterias son formas de vida (es decir, organismos) unicelulares que solo se pueden ver con un microscopio. No todas las bacterias son nocivas; algunas que viven en el cuerpo cumplen una …

Apr 4, 2024 · Fight coronavirus at home by cleaning and disinfecting surfaces that are touched often. Most disinfectants for home use will kill the virus that causes COVID-19.

Feb 24, 2024 · Some viruses are more resilient than you may think. Learn more about how they spread and how to protect yourself.

Apr 24, 2025 · Tuberculosis, also called TB, is a serious illness that mainly affects the lungs. The germs that cause tuberculosis are a type of bacteria. Tuberculosis can spread when a person with the …

Mar 14, 2024 · Oral germs and oral swelling and irritation, called inflammation, are linked to a severe form of gum disease, called periodontitis. Studies suggest that these germs and inflammation might …

Aug 16, 2025 · Overview 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 drink. …

Jan 21, 2026 · Vaccines for children are timed carefully. Healthcare professionals give children vaccines when protection inherited from the mother fades and the child's immune system is ready for …