Neosporosis in South America

Moore, D.P.

doi:10.1016/j.vetpar.2004.10.001

Cited by 73 publications

(51 citation statements)

References 41 publications

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“…This may indicate an acute infection (Barber and Trees, 1996). Clinical and subclinical infections with N. caninum in dogs have been extensively reported worldwide with seroprevalence rates ranging from 0.2-54% (Moore, 2005). The presence of infected stray dog could be a risk factor for the occurrence of N. caninum-associated abortions in cattle.…”

Section: Discussionmentioning

confidence: 99%

Seroprevalence of <i>Neospora Caninum</i> in Stray Dogs

Garedaghi¹

2011

American Journal of Animal and Veterinary Sciences

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Problem statement: To investigate anti-Neospora caninum antibodies in stray dogs living in Tabriz city, 100 blood samples were collected. Serum samples were screened for detection of anti-N. caninum IgG antibodies using Indirect Fluorescent Antibody Test (IFAT; ≥50). Antibodies were seen in 31 (31%) of 100 dogs. Approach: The IFAT antibody titers were as follows: 1:50 in 11 dogs, 1:100 in ten dogs, 1:200 in six dogs, 1:400 in one dog, 1:800 in two dogs and 1:1,600 in one dog. There were no significant differences in seroprevalence of Neospora infection between different genders (p>0.05). The seropositive results were increased with age and differences were statistically significant (p<0.05). Results:The results confirm the presence and exposure of stray dogs to N. caninum in Tabriz city and importance of this protozoan as a cause of disease in dogs of the region. Conclusion: Based on the present study, this is the first report on seroprevalence of N. caninum in stray dogs of the Tabriz northwest of Iran. This finding confirms the presence of Neospora infection and the important role of dogs in the region.

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Section: Discussionmentioning

confidence: 99%

Seroprevalence of <i>Neospora Caninum</i> in Stray Dogs

Garedaghi¹

2011

American Journal of Animal and Veterinary Sciences

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“…Serum samples from wolf (Canis lupus, n5324;collected 1996-2008, caribou (Rangifer tarandus, n5453;1994-2006, moose (Alces alces, n5201;-2005, black-tailed deer (Odocoileus hemionus, n555;1980-2000, fox (Vulpes vulpes, n59;1985-2006, and coyote (Canis latrans, n512; 2005) were assayed for N. caninum-and T. gondii-reactive antibodies. Some caribou samples (n564) were available for the N. caninum assay.…”

Section: Methodsmentioning

confidence: 99%

“…Dogs and coyotes are definitive hosts for N. caninum (McAllister et al, 1998;Gondim et al, 2004b), whereas felid species are definitive hosts for T. gondii. Both parasites infect a wide range of intermediate hosts (Chomel et al, 1995;Zarnke et al, 2000;Kutz et al, 2001;Dubey et al, 2003a, b;Yai et al, 2003;Gondim et al, 2004a;Moore, 2005) and are present in both domestic and wildlife populations. The abortogenic potential of these parasites can impact production of livestock and wildlife and is important to the management of both populations.…”

Section: Introductionmentioning

confidence: 99%

Neospora Caninum and Toxoplasma Gondii Antibody Prevalence in Alaska Wildlife

Stieve

Beckmen

Kania

et al. 2010

Journal of Wildlife Diseases

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ABSTRACT:Free-ranging caribou and moose populations in some regions of Alaska undergo periodic declines in numbers. Caribou and moose are managed by the state as valuable resources for not only sustenance and subsistence, but also for cultural heritage. Incidence and prevalence of diseases that may impact herd health and recruitment from year to year are relevant to management decisions aimed to protect the long-term viability of these herds. Neospora caninum and Toxoplasma gondii are two apicomplexan parasites that can cause neurologic disease and abortions in their intermediate hosts and less frequently cause disease in their definitive hosts. The definitive hosts of N. caninum and T. gondii are canids and felids, respectively, and prevalence in the environment is in part dependent on maintenance of the life cycle through the definitive hosts. Serum samples from caribou (Rangifer tarandus, n5453), wolf (Canis lupus, n5324), moose (Alces alces, n5201), black-tailed deer (Odocoileus hemionus, n555), coyote (Canis latrans, n512), and fox (Vulpes vulpes, n59) collected in Alaska were assayed for N. caninum-and T. gondii-reactive antibodies with an immunofluorescent antibody test (IFAT) and a modified agglutination test (MAT), respectively. Seroprevalence of N. caninum was greater in caribou (11.5%) than in wolves (9.0%), moose (0.5%), or black-tailed deer (0%). Seroprevalence of T. gondii was greater in wolves (17.8%) than in caribou (0.4%), moose (0%), or black-tailed deer (0%). Seroprevalence of N. caninum and T. gondii were 16.7% and 0.0% in coyotes and 0.0% and 12.5% in fox, but small sample sizes prevented further analysis. Antibodies to N. caninum in young caribou compared to adult caribou suggest that vertical transmission may be an important component of new infections in Alaskan caribou. The spatial distribution of antibody-positive individuals across Alaska may reflect differences in frequency of definitive hosts and alteration of predation patterns among regions.

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“…The plates were then washed 3 times, and 100 ml of the substrate solution (3,39,5,59-tetramethylbenzidine, H 2 O 2 ) was added to each well and incubated for 15 min in the Serological status of the sera tested using the SRS2 sandwich enzyme-linked immunosorbent assay. A, after the first reading, sera were classified into negative I (S/P ratio ,5), negative II (S/P ratio 5-10), borderline (S/P ratio 10-15), slightly positive (S/P ratio [15][16][17][18][19][20], and strong positive (S/P .20). B, repeatability was assessed by repeating some sera twice (on separated plates) after the first reading.…”

mentioning

confidence: 99%

“…The seroprevalence in Algerian dogs (21-23%) was similar to the prevalence obtained in other studies in rural or farm dogs. 16 This could be related to the fact that the dogs were stray dogs coming mainly from peri-urban areas. Once again, a larger epidemiological study must be performed in different canine populations (rural, stray, and urban dogs).…”

mentioning

confidence: 99%

Evaluation of a SRS2 Sandwich Commercial Enzyme-Linked Immunosorbent Assay for the Detection of Anti-Neospora Caninum Antibodies in Bovine and Canine Sera

et al. 2009

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Abstract. Neospora caninum is a parasite responsible for abortion in cows and neuromuscular disease in dogs. Serology is the most widely used technique to evaluate the prevalence of N. caninum in different host populations. A sandwich enzyme-linked immunosorbent assay (ELISA) based on the use of an anti-SRS2 monoclonal antibody was evaluated against the indirect fluorescent antibody test for 100 canine sera and against a well-characterized ELISA for 102 bovine sera. In cattle sera, the relative sensitivity and relative specificity were 100%. In dog sera, the relative specificity and relative sensitivity were 94% and 86%, respectively. The kappa value was 1 for bovine sera and 0.77 for canine sera. The seroprevalence was 3.9% in bovine sera and 21-23% in canine sera. The SRS2 sandwich ELISA was considered a valuable tool in both species.

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Neosporosis in South America

Cited by 73 publications

References 41 publications

Seroprevalence of <i>Neospora Caninum</i> in Stray Dogs

Seroprevalence of <i>Neospora Caninum</i> in Stray Dogs

Neospora Caninum and Toxoplasma Gondii Antibody Prevalence in Alaska Wildlife

Evaluation of a SRS2 Sandwich Commercial Enzyme-Linked Immunosorbent Assay for the Detection of Anti-Neospora Caninum Antibodies in Bovine and Canine Sera

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