Prevalence of Antibodies to Neospora caninum in Different Canid Populations

Abstract

A total of 1,554 dogs from 5 countries on 3 continents were tested for antibodies to Neospora caninum using an indirect fluorescent antibody test. In Australia, overall, 42/451 (9%, 95% confidence interval [CI] 6-12%) dogs were seropositive (Melbourne 11/207 [5%, 95% CI 2-9%]; Sydney 18/150 [12%, 95% CI 7-18%]; Perth 13/94 [14%, 95% CI 8-22%]). Antibodies to N. caninum were also detected in dogs in South America (Uruguay [20%, 95% CI 16-24%, n = 414]) and sub-Saharan Africa (Tanzania [22%, 95% CI 12-36%, n = 49]). In contrast, only 1 of 500 dogs tested from the Falkland Islands and none of 140 dogs from Kenya was seropositive. Of wild canids, 1/54 (2%, 95% CI 0-10%) British foxes and 15/169 (9%, 95% CI 5-14%) Australian dingoes had antibodies to N. caninum.

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].…”

“…In comparison with other published studies, it appears that these results revealed a very high level of seroprevalence in dogs in Algeria when compared to results from Brazil (14%) [24], Australia (9%), Falklands Islands (0.2%), Kenya (0%) [38], USA and Canada (7%) [22], and Italy (6.4%) [39]. The seroprevalence in Algerian dogs in the present study is similar to the 29% found in another Italian survey [40].…”

Use of ELISA based on NcSRS2 of Neospora caninumexpressed in Pichia pastoris for diagnosing neosporosis in sheep and dogs

“…There is evidence of a relationship between N. caninum infection in dogs and cattle (WOUDA et al, 2000;WOUDA et al, 1999), as well as an increased risk of neosporosis among sheep and goat herds when they are exposed to contact with dogs (ABO-SHEHADA & ABU- HALAWEH, 2010;BARBER et al, 1997). Thus, identification of seropositive animals and seroprevalence data in dog populations is extremely important for control and prevention strategies.…”

Prevalence of Agglutinating Antibodies to Neospora caninum in Raccoons, Procyon lotor

“…However, little is known about the prevalence of the parasite in wildlife populations. Neospora caninum antibodies have been found in coyotes (Lindsay et al, 1996), dingos (Barber et al, 1997), and red foxes (Barber et al, 1997;Buxton et al, 1997;Simpson et al, 1997), suggesting a role for wild canids in the epidemiology of neosporosis. Dubey et al (1999) found that 162 (41%) of 400 white-tailed deer (Odocoileus virgianus) from northeastern Illinois had agglutinating antibodies to N. caninum.…”