Listeriosis – Large Animal Veterinary Rounds

Listeriosis is a bacterial infection most frequently triggered by Listeria monocytogenes, although L. ivanovii and L. grayi have actually been reported in specific cases. Listeriosis mostly triggers infections of the central nerves (meningitis, meningoencephalitis, brain abscess, cerebritis) and bacteremia in those who are immunocompromised, pregnant women, and those at the extremes of age (babies and the senior), as well as gastroenteritis in healthy persons who have consumed a large inoculum of the organism.

Listeria is common in the environment and is mostly transmitted via the oral path after intake of infected food products, after which the organism penetrates the intestinal system to trigger systemic infections. The medical diagnosis of listeriosis needs the seclusion of the organism from the blood and/or the cerebrospinal fluid. Treatment includes extended administration of antibiotics, primarily ampicillin and gentamicin, to which the organism is typically susceptible.

The disease mostly impacts older grownups, persons with weakened body immune systems, pregnant females, and babies. Rarely, individuals without these danger factors can likewise be impacted. An individual with listeriosis normally has fever and muscle aches, typically preceded by looseness of the bowels or other intestinal symptoms. Nearly everyone who is identified with listeriosis has invasive infection (significance that the bacteria spread out from their intestines to their blood stream or other body sites). Disease may happen as much as 2 months after consuming infected food.