Lamb mortality in an outbreak of Yersinia pseudotuberculosis mastitis, as a collateral effect of colostrum feeding for Lentivirus-control

Mastitis in sheep – The last 10 years and the future of research

“…Other Gram-negative bacteria isolated from intramammary infections include Citrobacter spp., Escherichia coli, Enterobacter spp., Klebsiella spp., Pasteurella multocida, Proteus spp., Pseudomonas aeruginosa (Leitner and Krifucks, 2007), Salmonella spp., Serratia spp. (Contreras and Rodríguez, 2011) and Yersinia pseudotuberculosis (Juste et al, 2009), representing about 3% of all organisms isolated from dairy sheep milk . These are considered to be environmental organisms, capable of causing clinical mastitis depending on the immunological status of exposed animals (Contreras and Rodríguez, 2011).…”

Isolation, Histopathological and Molecular Detection of Yersinia Pseudotuberclosis Infection in Sheep in Turkey.

“…In ruminants, clinical diseases by Y. pseudotuberculosis associated with abortion (Hannam, 1993;Otter, 1996), (mastitis Juste et al, 2009) and enterocolitis (Seimiya et al, 2005;Slee and Button, 1990). There were few reports of Y. pseudotuberculosis abortion in sheep UK (Baird et al, 1997), Australia (Callinan et al, 1988;Slee and Skilbeck, 1992), New Zealand (Hodges et al, 1984) and USA (Brown and Davis, 1989).…”

“…The prevalence of Yersiniosis in domestic animals may be higher than reported as a consequence of the nonspecific signs of infections as well as the serologic cross reactions that lead to confusion with other bacterial infections (Hodges et al, 1984;Witte et al, 1985;Corbel et al, 1992;Juste et al, 2009) Early diagnosis is important for successful treatment and reducing stress factors may prevent clinical Yersiniosis. Tetracyclines, neomycin, and lincomycin-spectinomycin are reported to be effective against most isolates of Y pseudotuberculosis and can be used until results of antibiotic sensitivity tests are available (Taffs and Glynis, 1983;Bin-Kun et al, 1994).…”

“…Yersinia pseudotuberculosis is a Gramnegative organism that causes enteritis and septicaemia (Taffs and Glynis, 1983;Brown and Davis 1989). Yersiniosis has been reported from wild animals and birds, rodents, ruminants, carnivores, non-human primates, man and occasionally farm animals (Brown et al, 2007;Busato et al, 1999;Juste et al, 2009). The clinical symptoms and pathologic changes vary among the different host species (Zhang et al, 2008).…”

“…Experimental infection produced a purulent placentitis in most ewes and focal hepatic and myocardial necrosis in newborn lambs. Rarely, the organism would cause other pathological changes, such as pneumonia in cattle (Juste et al, 2009), epididymo-orchitis of rams (Slee and Button, 1990) or oculoglandular syndrome in (goats Wessels et al, 2009). The organism can be shed by asymptomatic animals (Brown et al, 2007).…”