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Perianal cellulitis, also known as perianitis or perianal streptococcal dermatitis, is a bacterial infection affecting the lower layers of the skin around the anus. [1] [2] [3] It presents as bright redness in the skin and can be accompanied by pain, difficulty defecating, itching, and bleeding.
Group A streptococcal infections are a number of infections with Streptococcus pyogenes, a group A streptococcus (GAS). [1] S. pyogenes is a species of beta-hemolytic Gram-positive bacteria that is responsible for a wide range of infections that are mostly common and fairly mild. If the bacteria enters the bloodstream, the infection can become ...
It was a retrospective study (2008–2010) and looked at 441 children who attended a Belgian hospital emergency department and had a throat swab taken. It concluded that the Centor criteria are ineffective in predicting the presence of Group A beta-haemolytic streptococcus (i.e. antibiotic treatment-worthy) on throat swab cultures in children. [4]
Streptococcal pharyngitis, also known as streptococcal sore throat (strep throat), is pharyngitis (an infection of the pharynx, the back of the throat) caused by Streptococcus pyogenes, a gram-positive, group A streptococcus. [9] [10] Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the front of the neck.
An estimated 700 million GAS infections occur worldwide each year. While the overall mortality rate for these infections is less than 0.1%, over 650,000 of the cases are severe and invasive, and these cases have a mortality rate of 25%. [4] Early recognition and treatment are critical; diagnostic failure can result in sepsis and death.
The severity of this disease frequently warrants immediate medical treatment. TSS is caused primarily by some strains of Staphylococcus aureus and Streptococcus pyogenes that produce exotoxins. Nevertheless, invasive GBS infection can be complicated, though quite infrequently, by streptococcal toxic shock-like syndrome (STLS).
The death rate for women giving birth decreased in the 20th century in developed countries. The decline may be partly attributed to improved environmental conditions, better obstetrical care, and the use of antibiotics. Another reason appears to be a lessening of the virulence or invasiveness of Streptococcus pyogenes.
It is caused by Staphylococcus aureus, and Streptococcus pyogenes. [18] Erysipelas is an acute streptococcus bacterial infection [19] of the deeper skin layers that spreads via with lymphatic system. Cellulitis is a diffuse inflammation [20] of connective tissue with severe inflammation of dermal and subcutaneous layers of the skin.