نتایج جستجو برای: brucella antibodies in flock
تعداد نتایج: 16999118 فیلتر نتایج به سال:
Brucella abortus is an intracellular pathogen of monocytes, macrophages, dendritic cells, and placental trophoblasts. This bacterium causes a chronic disease in bovines and in humans. In these hosts, the bacterium also invades neutrophils; however, it fails to replicate and just resists the killing action of these leukocytes without inducing significant activation or neutrophilia. Moreover, B. ...
Serologic tests currently available for brucellosis diagnosis detect antibodies to Brucella but do not distinguish between species of Brucella. Although Brucella suis is known to circulate within various feral swine (Sus scrofa) populations, our objective was to determine the primary species of Brucella circulating in feral swine populations in areas of the US with high brucellosis prevalence. ...
background: brucellosis is a febrile zoonotic infectionand has worldwide distribution among humans as well asanimals. although the seroprevalence of brucellosis in variousanimals has been described in iran, there is only one report onequine brucellosis in the region. objectives: this study wascarried out to determine the seroprevalence of brucellosis inracing clubs and private horse owners in t...
Sheep brucellosis, a zoonosis mainly due to B. melitensis (biovar 1, 2 or 3), remains widespread world-wide. Pathologically and epidemiologically, the disease is very similar to B. abortus infection in cattle. The live B. melitensis Rev 1 strain is currently considered as the best vaccine available for the control of sheep brucellosis, especially when used at the standard dose by the conjunctiv...
Sera of 204 wild boars (Sus scrofa), shot by hunters in the South-Moravian district of Břeclav during 19932001, were tested by microagglutination reaction using safranin-stained antigens of Francisella tularensis and Brucella abortus: 10.8% and 8.7% seroreactors, respectively, were detected. The highest (17%) prevalence of tularaemia antibodies was found in wild boars during 1993–1994 at the be...
background brucellosis as a zoonotic infectious disease is endemic in iran and due to the variation in clinical and laboratory findings, its diagnosis is often delayed. objectives the aim of this study was to determine clinical and laboratory aspects of the disease in khuzestan. patients and methods medical records of 81 admitted patients with a diagnosis of brucellosis were reviewed. the study...
Bovine brucellosis is endemic in Nigeria; however, limited data exist on nationwide studies and risk factors associated with the disease. Using a cross-sectional sero-epidemiological survey, we determined the prevalence of and risk factors for brucellosis in slaughtered cattle in three geographical regions of Nigeria. Serum samples from randomly selected unvaccinated cattle slaughtered over a p...
A method is described in detail for the preparation of monospecific sera for typing brucella cultures. The importance of using entirely smooth cultures throughout the procedure is emphasized. A single intravenous injection of living brucellae in rabbits caused an active infection and the early appearance of high-titre antibodies. Sera obtained five to seven days after inoculation contained a hi...
BACKGROUND Flock surveillance systems for avian influenza (AI) virus play a critical role in countries where vaccination is not practiced so as to establish the epidemiological characteristics of AI needed for the development of prevention and control strategies in such countries. MATERIALS AND METHODS As part of routine AI monitoring in southwest Nigeria, a competitive ELISA was used for det...
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