[1] It is a mucosal commensal and opportunistic pathogen that infects several animals and humans, but most commonly isolated from the uterus of mares.

It is a subspecies of Streptococcus equi, a contagious upper respiratory tract infection of horses, and shares greater than 98% DNA homology, as well as many of the same virulence factors.

It ferments D-glucose, lactose, maltose, sucrose, salicin, D-sorbitol, and starch, but is negative for others like D-mannitol, glycerol, and inulin.

Antibiotic wise, S. zooepidemicus is highly susceptible to Penicillin, usually give for treatment, as well as Ampicillin and Erythromycin, but is extremely resistant to Novobiocin, Optochin, and Tribrissen.

Commercial uses for hyaluronic acid include an ingredient in cosmetics, skin filler for anti-aging and lip injections, in viscosurgery, and a lubricating substance in arthritic joints.

[8] Pathogenic gram positive bacteria species express cell-wall associated proteins that interact in various ways with the extracellular environment.

In animals, these symptoms can include fever, inflammation of thorax, lymph nodes, or abdomen, bronchopneumonia, sepsis, mastitis, and more.

[12] In Horses, S. zooepidemicus is normal flora bacterium, but is opportunistic and therefore will infect wounds, the respiratory system, and uterine, if given the chance.

Two days, he experienced vertigo and vomiting, and was emitted into the hospital where he was treated with acute labyrinthitis, followed by meningococcal sepsis.

This case study specifically is interesting as it strongly suggests an unidentified novel exotoxin, possibly produced by S. zooepidemicus.

In 2008, a 59-year-old woman was admitted to the emergency room due to body weakness and lightheadedness when standing, which starting three weeks prior.

Over the past couple of days before being emitted she also reported shortness of breath, as well as resting tremors, rhinorrhea, and a chronic cough.