Prevalence of Brucella abortus antibodies in equines of a tropical region of Mexico

A cross-sectional study was conducted to determinate the seroprevalence rate of equine brucellosis in the state of Tamaulipas, Mexico. Serum samples from 420 equines were analyzed with the Rose Bengal test at cell concentrations of 3% (RBT-3%) and 8% (RBT-8%), and positive results were confirmed with the Rivanol test (RT). Risk factors were determined with the prevalence ratio (PR) and the use of variables generated from a questionnaire administered to the animals' owners. Serum from 1 stallion had positive results with both the RBT-8% and the RT, for a seroprevalence rate of 0.238%. Drinking of water from a pond that was also used by cattle and dogs was the only associated risk factor for this animal (PR = 0.25). However, the results were considered false-positive, because the results for other horses in the same environmental conditions were negative. Although brucellosis is considered endemic in ruminants in the study area, the results obtained suggest that equines are not a reservoir of brucellosis and do not play an important role in the epidemiologic patterns of this disease in northeastern Mexico.     

Ticks and tick-borne bovine piroplasmosis in the Southmountain Pasture of Hunan Province,China

Tropical Animal Health and Production - Ticks and tick-borne bovine piroplasmosis is one of the most serious diseases affecting cattle bred in the Southmountain pasture of Hunan province. An...     

Pathogenesis of helminths in equines

This review summarizes information on the clinical signs, gross and microscopic lesions associated with nematode and cestode infections and discusses the development of these conditions in the equine host.     

认识犬梨形虫病

<正>犬梨形虫病是由蜱为媒介感染犬的一种寄生虫病,主要引起犬体温升高(40℃以上)、精神沉郁、高度贫血、逐渐消瘦等症状,使机体出现全身性机能紊乱,特别是血液中红细胞破坏严重,往往虚脱衰竭死亡。犬梨形虫病流行条件必须具有病原体、蜱、犬三种生物体,病原体是一种永久性寄生