The Prevalence and Identity of <i>Sarcocystis</i> Cysts in Cattle in Belgium

Vercruysse, Jozef; Fransen, J.; Goubergen, M.

doi:10.1111/j.1439-0450.1989.tb00582.x

Cited by 22 publications

(18 citation statements)

References 9 publications

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“…observed in both farms is in agreement with other studies from several countries that indicate up to 100% prevalence, especially for S. cruzi (Böttner et al 1987;Dubey et al 1989;Latif et al 1999;Van Knapen et al 1987;Vercruysse et al 1989). Neospora caninum seroprevalence may vary widely depending on diagnostic technique and cutoff titer used (Dubey et al 2007); however, in the present study seroprevalence in cows and calves was similar to that reported previously in Argentina (Moré et al 2009).…”

Section: Discussionsupporting

confidence: 92%

Serologic profiles for Sarcocystis sp. and Neospora caninum and productive performance in naturally infected beef calves

et al. 2010

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Sarcocystis sp. and Neospora caninum infections affect cattle worldwide causing important economic losses. The objective of the present study was to trace serologic profiles for Sarcocystis sp. and N. caninum in naturally infected beef calves and analyze their relationship with transmission routes and productive performance. Samples were collected in two cow-calf operations located in Buenos Aires province, Argentina. In farm 1, 43 calves were bled and weighed three times. In farm 2, 69 calves were bled and weighed six times. Sarcocystis sp. and N. caninum immunofluorescence antibody test (IFAT) titers were averaged for each sampling point in order to trace serologic profiles for each infection. Categories were created to evaluate differences in daily weight gain. For S. cruzi antigen, animals were separated in a low-titer (< or = 200) and high-titer group (>200); for N. caninum, animals were grouped as infected and uninfected. Sarcocystis sp. antibody titer as well as the number of infected animals increased gradually over time in both farms. In farm 2 the low-titer group had significantly higher daily weight gain than the high-titer group. For N. caninum 44% (farm 1) and 65% (farm 2) of calves were considered infected, and the serological profile was horizontal or decreasing over time. However, seroprevalence increased in both farms and vertical and horizontal transmission frequency were estimated between 18.5%-29% and 22-25.5%, respectively. No differences were detected in daily weight gain between N. caninum groups from both farms. This is the first report of serological profiles for Sarcocystis sp. and N. caninum by IFAT in naturally infected beef calves and their relationship to different transmission routes and productive performance.

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Section: Discussionsupporting

confidence: 92%

Serologic profiles for Sarcocystis sp. and Neospora caninum and productive performance in naturally infected beef calves

et al. 2010

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“…After an initial survey on 203 cattle, the oesophagus was chosen as the most suitable organ for detecting Sarcocystis infection. This was in line with previous studies on bovine sarcocystosis [8,9].…”

Section: Methodssupporting

confidence: 93%

“…infection of 52 % which is lower than that reported from other countries. Using similar techniques, Hinaidy and co-workers [12] reported a prevalence of 87 % in Austria, Vercruysse and colleagues [9] found 97 % of cattle infected in Belgium, Boch and Erber [13] reported a prevalence of 99% in the Federal Republic of Germany and Bottner and co-workers [8] reported a prevalence of 97 % in New Zealand. The factors thought most likely to be responsible for the low prevalence in WA include the low densities of both the definitive and the intermediate host and the relative aridity of much of the region.…”

Section: Discussionmentioning

confidence: 99%

The epidemiology of Sarcocystis spp. in cattle of Western Australia

et al. 1992

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SUMMARYOesophagus samples from 714 cattle from Western Australia were examined by artificial digestion to detect the presence of Sarcocystis spp. The overall prevalence of infection was 52%. The prevalence of infection increased with age and was highest in the entire males (92%). The prevalence was lower in cattle which originated from arid and semiarid regions (9 and 31 % respectively) than those from tropical (87%) and temperate (60%) regions. Possible reasons for these differences are discussed and it is concluded that environmental and management factors as well as host age and sex influence the prevalence of infection with Sarcocystis spp. in cattle.

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“…References relating to the spread of parasites in European cattle are scarce and often rather vague about Sarcocystis typing, which is sometimes conducted only by assessment of cyst wall thickness. Since the cysts of S. cruzi are thin-walled, they are easily identifiable by light microscopy; however, the same cannot be said for S. hominis and S. hirsuta, both of which have thick-walled cysts that make them indistinguishable from each other (Mehlhorn and Heydorn 1978;Vercruysse et al 1989).…”

Section: Introductionmentioning

confidence: 94%

Detection of a morphogenetically novel Sarcocystis hominis-like in the context of a prevalence study in semi-intensively bred cattle in Italy

et al. 2011

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The aim of this study was to determine the prevalence of sarcosporidiosis in semi-intensively bred cattle in northwestern Italy. A diagnostic protocol was setup in which infected animals were identified by rapid histological examination of the esophagus, diaphragm, and heart and the detected Sarcocystis spp. were subsequently typed using conventional electron microscopy in combination with molecular techniques. Sarcosporidia cysts were detected in 78.1% of the animals and were seen most often in the esophagus. The cattle is intermediate host for Sarcocystis hominis (final host, humans and some primates), Sarcocystis cruzi (final host, domestic and wild canids), and Sarcocystis hirsuta (final host, wild and domestic cats).All these three species of Sarcocystis were identified, variously associated, with the following prevalence: S. cruzi (74.2%), S. hirsuta (1.8%), and S. hominis (42.7%). Furthermore, a new S. hominis-like (prevalence 18.5%), characterized by hook-like structures of villar protrusion and a different sequence of the 18S rRNA gene, was identified. The cattle sheds testing positive for zoonotic Sarcocystis were assessed for risk factors contributing to the maintenance of the parasite's life cycle. Significant associations emerged between consumption of raw meat by the farm owner, mountain pasturing, and absence of a sewerage system on the farm and cattle breed. Our study demonstrates that sarcosporidiosis may constitute a public health problem in Italy and indicates several issues to be addressed when planning surveillance and prevention actions. The applied diagnostic approach revealed that cattle can harbor a further type of Sarcocystis, of which life cycle and zoonotic potential should be investigated.

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The Prevalence and Identity of Sarcocystis Cysts in Cattle in Belgium

Cited by 22 publications

References 9 publications

Serologic profiles for Sarcocystis sp. and Neospora caninum and productive performance in naturally infected beef calves

Serologic profiles for Sarcocystis sp. and Neospora caninum and productive performance in naturally infected beef calves

The epidemiology of Sarcocystis spp. in cattle of Western Australia

Detection of a morphogenetically novel Sarcocystis hominis-like in the context of a prevalence study in semi-intensively bred cattle in Italy

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