Streptococcus - Wikipedia
WebStreptococcus is a genus of gram-positive coccus (pl.: cocci) or spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Bacillota.
Strep throat - Symptoms & causes - Mayo Clinic
WebNov 30, 2022 · Causes. Strep throat is caused by infection with a bacterium known as Streptococcus pyogenes, also called group A streptococcus. Streptococcal bacteria are contagious. They can spread through droplets when someone with the infection coughs or sneezes, or through shared food or drinks.
Streptococcal Infections - Infectious Diseases - MSD Manual ...
WebMore Information. Streptococci are gram-positive aerobic organisms that cause many disorders, including pharyngitis, pneumonia, wound and skin infections, sepsis, and endocarditis. Symptoms vary with the organ infected. Sequelae of infections due to group A beta-hemolytic streptococci may include rheumatic fever and glomerulonephritis.
Streptococcal Infections | Strep Throat | MedlinePlus
WebOct 21, 2016 · Strep is short for Streptococcus, a type of bacteria. There are several types. Two of them cause most of the strep infections in people: group A and group B. Group A strep causes: Strep throat - a sore, red throat. Your tonsils may be swollen and have white spots on them. Scarlet fever - an illness that follows strep throat.
The Different Types of Streptococci (Strep Bacteria) - Everyday …
WebOct 15, 2022 · Streptococcal infections are any type of infection caused by the streptococcal, or “strep” group of bacteria. There are a number of different streptococci, which create symptoms...
Streptococcus | Definition, Species, & Disease | Britannica
Webstreptococcus, (genus Streptococcus), group of spheroidal bacteria belonging to the family Streptococcaceae. The term streptococcus (“twisted berry”) refers to the bacteria’s characteristic grouping in chains that resemble a string of beads. Streptococci are microbiologically characterized as gram-positive and nonmotile.
Streptococcus - Medical Microbiology - NCBI Bookshelf
WebStreptococci are Gram-positive, nonmotile, nonsporeforming, catalase-negative cocci that occur in pairs or chains. Older cultures may lose their Gram-positive character. Most streptococci are facultative anaerobes, and some are obligate (strict) anaerobes. Most require enriched media (blood agar).
Group B strep disease - Symptoms & causes - Mayo Clinic
WebSep 21, 2021 · Overview. Group B strep (streptococcus) is a common bacterium often carried in the intestines or lower genital tract. The bacterium is usually harmless in healthy adults. In newborns, however, it can cause a serious illness known as group B strep disease. Group B strep can also cause dangerous infections in adults with certain …
Streptococcal Infections - Infections - MSD Manual Consumer Version
WebStreptococcal infections are caused by any one of several species of Streptococcus. These gram-positive, sphere-shaped (coccal) bacteria (see figure ) cause many disorders, including strep throat, pneumonia, and wound, skin, …
Quick Facts:Streptococcal Infections - Merck Manual Consumer …
WebStreptococcus (simply called strep) is a common group of bacteria. Different types of strep cause different diseases. Most often they cause sore throat (strep throat) or skin infections. But they can cause life-threatening infections in other parts of your body. Streptococcus bacteria can live in and on your body without causing symptoms.
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