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Chains of S. pyogenes bacteria (orange) at 900× magnification Gram stain of Streptococcus pyogenes. Unlike most bacterial pathogens, S. pyogenes only infects humans. Thus, zoonotic transmission from an animal (or animal products) to a human is rare. [8] S. pyogenes typically colonizes the throat, genital mucosa, rectum, and skin. Of healthy ...
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 ...
This is a list of infectious diseases arranged by name, along with the infectious agents that cause them, the vaccines that can prevent or cure them when they exist and their current status. Some on the list are vaccine-preventable diseases .
Scarlet fever, also known as scarlatina, is an infectious disease caused by Streptococcus pyogenes, a Group A streptococcus (GAS). [3] It most commonly affects children between five and 15 years of age. [1] The signs and symptoms include a sore throat, fever, headache, swollen lymph nodes, and a characteristic rash. [1]
No vaccines are currently available to protect against S. pyogenes infection, although research is underway to develop one. [50] Difficulties in developing a vaccine include the wide variety of strains of S. pyogenes present in the environment and the large amount of time and number of people that will be needed for appropriate trials for ...
Epiglottitis was historically mostly caused by infection by H. influenzae type b (commonly referred to as "Hib"). [1] With vaccination, it is now more often caused by other bacteria, most commonly Streptococcus pneumoniae, Streptococcus pyogenes, or Staphylococcus aureus. [1] Predisposing factors include burns and trauma to the area. [1]
Invasive strep infections caused by Group A bacteria are on the rise across the globe. Learn what invasive Group A strep is and why rates are so high this year.
Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.