• A small percentage of horses can develop internal abscesses, which are more serious. (eliteequineks.com)
  • If the horses develop internal abscesses, their disease is more serious and carries a guarded prognosis. (eliteequineks.com)
  • Internal abscesses can develop when the bacteria are carried into the body and infect the liver, kidney, lungs or other internal organs. (equusmagazine.com)
  • But the internal abscesses are more difficult to identify and treat, and so these cases accounted for 40 percent of all fatalities. (equusmagazine.com)
  • It takes longer for horses with internal abscesses to show signs of disease, and those that appear tend to be fairly nonspecific, such as lethargy, decreased appetite, fever, colic, coughing and/or weight loss. (equusmagazine.com)
  • The first isolation of C. pseudotuberculosis came from a cow lymph node in 1888, by French bacteriologist Edmond Nocard. (wikipedia.org)
  • Abscesses form within lymph channels, causing marked swelling of a leg with abscesses that open along a chain or progress into cellulitis. (equusmagazine.com)
  • Your veterinarian can also ultrasound the abscesses and find the best place to drain them. (eliteequineks.com)
  • Ultrasound may be needed to locate abscesses, assess their size and determine their maturity. (equusmagazine.com)
  • Corynebacterium pseudotuberculosis is a Gram-positive bacterium known globally to infect ruminants, horses, and rarely people. (wikipedia.org)
  • A disease known as ulcerative lymphagenitis can also result from infection with C. pseudotuberculosis in the distal limbs of horses. (wikipedia.org)
  • citation needed] C. pseudotuberculosis also causes disease in horses, and should be considered prevalent in areas where cases of "pigeon fever" and "ulcerative lymphadenitis" have been recorded. (wikipedia.org)
  • As vector patterns change with warming temperatures, C. pseudotuberculosis in horses is re-emerging in the United States. (wikipedia.org)
  • Some horses have developed lung abscesses after inhaling a concentration of bacterial organisms. (eliteequineks.com)
  • Affected horses should be isolated because drainage from their abscesses contains a high amount of bacteria that will contaminate the environment. (eliteequineks.com)
  • The infection, which usually causes abscesses in the chest or elsewhere in the horse's body, was first reported in horses in San Mateo County (San Francisco Bay Area) of California in 1915. (equusmagazine.com)
  • According to one large study Spier and colleagues published of 538 cases, 91 percent of the horses had external abscesses, and nearly 60 percent of the abscesses were in the chest. (equusmagazine.com)
  • Most horses recover fully once the abscess drains and the wound heals. (equusmagazine.com)
  • citation needed] Major bacterial spread occurs when superficial abscesses are broken open and release discharge that is then contacted by other animals during grooming, or contaminates feed, water, and bedding that other animals consume. (wikipedia.org)
  • Once found mainly in California, this bacterial infection has now been documented in 25 states across the country. (equusmagazine.com)
  • It was named because the abscesses cause swelling and give the horse's chest a "pigeon-breast" appearance. (eliteequineks.com)
  • An affected animal might be sore at the walk, usually after swelling and abscess of his chest and abdomen have occurred. (eliteequineks.com)
  • Although these can appear anywhere, they are most common in the chest (pectoral muscles) and along the midline of the belly. (equusmagazine.com)
  • C. pseudotuberculosis bacteria tend to localize and form abscesses in the pectoral region and ventral abdomen of the horse. (eliteequineks.com)
  • Once a horse becomes infected with C. pseudotuberculosis, the bacteria release a toxin that ultimately spurs the body to build a thick-walled abscess around the pathogens. (equusmagazine.com)
  • Infection of domesticated sheep and goats has been found across the globe. (wikipedia.org)
  • The incubation period-the time between the initial infection and the formation of the abscess-is about three to four weeks. (equusmagazine.com)
  • Hot, dry weather is the most common environment where the organism is found, and most pigeon fever cases appear in late summer/early fall (the author first diagnosed a case in August, and her number of cases has increased exponentially since that time). (eliteequineks.com)
  • Pigeon fever cases used to be found primarily in California, although within the last several years veterinarians have diagnosed cases in many areas of the western United States. (eliteequineks.com)
  • For much of the 20th century, pigeon fever was most commonly found in the Southwest and in California. (equusmagazine.com)
  • In small ruminants, C. pseudotuberculosis causes a disease called caseous lymphadenitis characterized by pyogranulomatous abscess formation. (wikipedia.org)
  • citation needed] It was finally renamed Corynebacterium pseudotuberculosis in 1948, to reflect that the clinical disease signs were similar to disease caused by M. tuberculosis species. (wikipedia.org)
  • citation needed] Distribution of C. pseudotuberculosis is mostly traced by examining prevalence of caseous lymphadenitis, the bacterium's main pathological disease. (wikipedia.org)
  • This disease is spread between infected animals by vectors and through contamination of the environment with exudate from abscesses. (wikipedia.org)
  • Some develop more severe infections where they acquire multiple abscesses and become systemically ill (inappetent, febrile, and lethargic). (eliteequineks.com)
  • External abscesses develop just under the skin or within the muscles near the surface of the body. (equusmagazine.com)
  • These abscesses may break open spontaneously or be broken open on surfaces or during shearing. (wikipedia.org)
  • citation needed] Although few recent studies have been conducted into its prevalence, data from slaughterhouses in Australia in the late 1980s suggested that C. pseudotuberculosis was affecting 50-60% of sheep. (wikipedia.org)
  • certain localized infections Note: Categories for "late effects" of infectious and parasitic diseases are to be found at 137. (cdc.gov)
  • This disease is spread between infected animals by vectors and through contamination of the environment with exudate from abscesses. (wikipedia.org)
  • In small ruminants, C. pseudotuberculosis causes a disease called caseous lymphadenitis characterized by pyogranulomatous abscess formation. (wikipedia.org)
  • citation needed] Distribution of C. pseudotuberculosis is mostly traced by examining prevalence of caseous lymphadenitis, the bacterium's main pathological disease. (wikipedia.org)
  • citation needed] C. pseudotuberculosis also causes disease in horses, and should be considered prevalent in areas where cases of "pigeon fever" and "ulcerative lymphadenitis" have been recorded. (wikipedia.org)
  • citation needed] Although few recent studies have been conducted into its prevalence, data from slaughterhouses in Australia in the late 1980s suggested that C. pseudotuberculosis was affecting 50-60% of sheep. (wikipedia.org)