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Streptococcus thermophilus formerly known as Streptococcus salivarius subsp. thermophilus [2] [1] is a gram-positive bacterium, and a fermentative facultative anaerobe, of the viridans group. [3] It tests negative for cytochrome, oxidase, and catalase, and positive for alpha-hemolytic activity. [3] It is non-motile and does not form endospores. [3]
Streptococcus constellatus subsp. pharyngis Whiley et al., 1999 Streptococcus constellatus subsp. viborgensis Jensen et al., 2013 Streptococcus constellatus is a species of Streptococcus [ 2 ] bacteria that is part of the normal flora in the oral cavity, urogenital region, and intestinal tract.
Streptococcus dysgalactiae subsp. canis [20] is the predominant subspecies encountered. It is a particularly common GGS in humans, although it is typically found on animals. S. phocae is a GGS subspecies that has been found in marine mammals and marine fish species.
Streptococcus dysgalactiae subsp. equisimilis is a species of Streptococcus, initially described by Frost in 1936. [1] As a result of several DNA hybridization studies in 1983, the species was merged into Streptococcus dysgalactiae. [2]
Streptococcus equi subsp. zooepidemicus, prevalent in horses, is also present in guinea pigs, pigs, monkeys, and various other animals, including dogs, cats, ferrets, and birds. [15] Additionally, Streptococcus suis mainly affects suids but can be found in other animals like cattle, sheep, goats, and chickens, with different genotypes found in ...
Streptococcus bovis is a group of strains of Gram-positive bacteria, originally described as a species, [5] [6] that in humans is associated with urinary tract infections, endocarditis, sepsis, [7] and colorectal cancer. [8] S. bovis is commonly found in the alimentary tract of cattle, sheep, and other ruminants, [9] and may cause ruminal acidosis.
L. lactis subsp. lactis (formerly Streptococcus lactis) [23] is used in the early stages for the production of many cheeses, including brie, camembert, Cheddar, Colby, Gruyère, Parmesan, and Roquefort. [24] The use of L. lactis in dairy factories is not without issues.
Streptococcus zooepidemicus is a Lancefield group C streptococcus that was first isolated in 1934 by P. R. Edwards, and named Animal pyogens A. [1] It is a mucosal commensal and opportunistic pathogen that infects several animals and humans, but most commonly isolated from the uterus of mares.