Streptococcus equines

For many equine infections, it is possible to predict which microorganisms will be involved. Traumatic wounds are usually contaminated with skin and fecal flora. Respiratory tract infections routinely involve Streptococcus (Strep.) species (spp.). Septic neonates routinely have positive blood cultures for Escherichia coli and other Gram-negative enteric bacteria. 

Endometritis in mares may be associated with at least four clinical s)mdromes. It can be caused by sexually transmitted infections, such as Taylorella equigenitalis (contagious equine metritis). Pseudomonas aeruginosa and Klebsiella pneumoniae. Pseudomonas and Klebsiella spp. may also be present in the fecal and genital flora. Chronic uterine infection with Streptococcus equi subsp. zooepidemicus and Escherichia coli are often associated with contamination of the uterus by fecal and genital flora. 

Antimicrobial susceptibility patterns of fungi isolated from horses with ulcerative keratomycosis. American Journal of Veterinary Research 59 138-142 Brooks D E, Andrew S E, Biros D J et al 2000a Ulcerative keratitis caused by beta haemolytic Streptococcus equi in 11 horses. Veterinary Ophthalmology 3 121-126 Brooks D E, Andrew S E, Denis H M et al 2000b Rose Bengal positive epithelial microerosions as a manifestation of equine keratomycosis. Veterinary Ophthalmology 3 83-86... 

Fecal streptococci have been used as indicators of fecal contamination in water [57]. The group includes many species of bacteria in the genus Streptococcus such as, S. faecalis, S. bovis, S. equines, S. avium, S.faceium, and S. gallinarum that are normally foimd in feces and gut of warm-blooded animals. Unlike the coliform bacteria, they are gram positive and also tend to live longer in water than fecal coliforms. Hence the ratios of fecal coliforms to fecal streptococci, which were used in the past to determine whether bacteria observed in water are from human or nonhuman sources, are no longer considered to be reliable [90]. 

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