Staphylococcus, from Ancient Greek σταφυλή (staphulḗ), meaning "bunch of grapes", and κόκκος (kókkos), meaning "kernel" or "Kermes", [1][2] is a genus of Gram-positive bacteria in the family …

Staphylococcal infections, commonly called staph infections, are caused by a genus of bacteria called Staphylococcus. There are more than 30 strains (types) of Staphylococcus bacteria.

Dec 16, 2025 · Staph infections can be deadly if the bacteria get into the bloodstream, joints, bones, lungs or heart. If the infection is in or near a medical device, such as a catheter, surgery may be …

Apr 15, 2024 · Staphylococcus aureus (staph) is a type of germ that about 30% of people carry in their noses. Most of the time, staph does not cause any harm, but it can sometimes cause infections. …

Nov 8, 2023 · Staph bacteria can cause many different types of infections, including: Skin infections, which are the most common types of staph infections. Bacteremia, an infection of the bloodstream. …

Dec 22, 2025 · Staphylococci are microbiologically characterized as gram-positive (in young cultures), non-spore-forming, nonmotile, facultative anaerobes (not requiring oxygen). Of significance to …

Sep 4, 2025 · Staphylococcal species are bacteria characterized by their microscopic appearance of grape-like, spherical clusters of organisms.

Dec 14, 2025 · A staph infection is caused by bacteria belonging to the Staphylococcus family. Although there are more than 30 types of staph bacteria, one type is usually responsible for most infections: …

Oct 4, 2025 · Staphylococcus—also called staph—is a type of bacteria that causes a wide range of infections if it spreads into your bloodstream or internal tissues. Staph infections are very contagious …

Aug 17, 2022 · Staphylococcus bacteria can invade the bloodstream or organs, resulting in serious illness. Many Staphylococcus bacterial infections can be treated and cured with traditional antibiotics.