Pathology of Bovine Abortion and Newborn Calf Death Caused by Dual Infection with Chlamydia psittaci and Infectious Bovine Rhinotracheitis Virus.

Serological Survey to Determine the Occurrence of Blue Tongue Virus, Bovine Leukemia Virus and Herpesvirus Infections in the Japanese Small Ruminant Population from Northern Districts

“…This survey has demonstrated absence of positiveness for antibodies to BLV, IBR and BoHV-4 in sheep flocks in the northern prefectures of Japan, where the majority of the Japanese sheep are bred. The potential for infection in sheep remains consistent when considering that these infections are present in cattle [3,4,5,8]. In particular IBR is most frequent in Hokkaido, as indicated by reports from 2005 to 2011, with up to 42 outbreaks in 2009 [1].…”

“…Studies on bovine leukemia virus (BLV) demonstrated the occurrence of the disease in cattle [3]. Concerning Herpesvirus infections, studies undertaken in Japan on bovine Herpesvirus type 1 (BoHV-1), agent of infectious bovine rhinotracheitis (IBR), pathogen of worldwide importance affecting primarily cattle, showed the diffusion in cattle population [4,5]. Similarly, studies on ovine Herpesvirus type 2 (OvHV-2), known cause of the sheep-associated malignant catarrhal fever (SA-MCF) [6,7], and on bovine Herpesvirus type 4 (BoHV-4) demonstrated the occurrence of the diseases in cattle in the country [3,8].…”

Chlamydophila abortus em animais de produção

“…A nova espécie Chlamydophila abortus (C. abortus), anteriormente classificada como Chlamydia psittaci (C. psittaci) sorovar 1, é freqüentemente associada a distúrbios reprodutivos em ovinos, caprinos, bovinos e esporadicamente em suínos e eqüinos (EVERETT, 2000). O aborto enzoótico dos ovinos e caprinos e o aborto epizoótico dos bovinos são as manifestações mais importantes e têm sido documentados por vários autores (NANDA et al, 1992;GRIFFITHS et al, 1995;OGINO et al, 1996;RODOLAKIS et al, 1998;REKIKI et al, 2002;SZEREDI & BACSADI, 2002). O aborto enzoótico dos ovinos foi primeiramente diagnosticado por STAMP et al (1950) na Escócia e a partir de 1956, em vários países da Europa, enquanto STORZ et al (1960 realizaram o primeiro isolamento de bactérias da família Chlamydiaceae a partir de aborto bovino.…”