Serological Survey of Antibody to Neospora caninum in Japanese Dogs.

Abstract

ABSTRACT. Prevalence of antibody to Neospora caninum (NC) in Japanese dogs were examined. The antibody was positive in 15 of 48 dogs (31.3%) reared in the dairy farms that had case of the abortions due to NC infection or had the cattle seropositive to NC, whereas the prevalence was 7.1% (14 of 198 dogs) among the dogs kept in urban areas. In one dog breeder, all 17 Shetland sheepdogs older than 7 months were seropositive, and one pup was diagnosed as neosporosis 2 months before the first serological examination. The antibody titers of the dogs kept at this breeder were almost unchanged for 1.5 years. Serological evidence of the dogs in the dairy farms and urban areas indicates the transmission of NC between dogs and cattle. Also serological results of the dogs in one breeder may suggest the potential horizontal transmission among dogs. -KEY WORDS: canine, Neospora, seroprevalence.

First epidemiological study on exposure to Neospora caninum in different canine populations in the Algiers District (Algeria)

“…Globally, there were no seroprevalence differences in relation with age, sex or general clinical aspect. The absence of difference between males and females is in agreement with several studies [10,19,38]. However, a higher frequency in females was previously reported [6].…”

“…The lowest seroprevalences were found in groups 2 and 3 (police squad and kennels) whereas the highest seroprevalences were found in stray and farm dogs. This is in agreement with several studies indicating that seroprevalences are higher in farm dogs or pounds dogs than in urban dogs [9,10,[22][23][24][25][26][27][28][29][30][31][32]. In breeder (urban) dogs the seroprevalence was 12.08% which is close to the data available in similar urban dog populations [31,41].…”

“…Additionally several serological surveys demonstrated that dogs originating from dairy farms, with or without a history of abortion in cattle, had higher seroprevalences than those living in urban areas [6,10,11].…”

“…Some studies investigated the seroprevalence in different dog populations in North America [22], in South America [23][24][25][26], in Asia [10,27,28], Oceania [29] or Europe [6,[30][31][32].…”

Prevalence of Toxoplasma gondii and Neospora caninum in Sika Deer from Eastern Hokkaido, Japan

“…The presence of T. gondii has been reported in domestic cats in Japan (Hagiwara, 1977;Fujinami et al, 1983) and recent studies have shown positive rates ranging between 5.4% (Maruyama et al, 2003) and 6.0% (Nogami et al, 1998). Sawada et al (1998) reported that 15 of 48 dogs (31.3%) raised on dairy farms having cases of cattle abortion due N. caninum infection were positive for antibody to N. caninum, whereas the occurrence of antibodies in dogs from an urban area was 7.1% (14 of 198 dogs). If wildlife populations continue to grow, and urbanization continues to expand, this will increase the chance of contact between domestic animals and wildlife.…”