Prevalence of Bovine Cysticercosis in the North West Province of South Africa from 2000 to 2010

Dzoma, B. M.; Setlhodi, Ethel K.; Molefe, Mphane M.; Motsei, Lebogang Ezra; Bakunzi, F.R.; Ndou, Rendani; Nyirenda, Mathew

doi:10.1080/09709274.2011.11906411

Cited by 5 publications

(6 citation statements)

References 15 publications

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“…The significantly lower proportions of cases of bovine cysticercosis observed during the summer months (November to March) was in contrast to reports by Sungirai et al (2014) and Dzoma et al (2011) who did not observe seasonal differences in the occurrence of bovine cysticercosis cases in Zimbabwe and North West Province of South Africa respectively [ 13 , 18 ]. The reason for the lower identification rates observed in the summer is unclear and will require further investigations.…”

Section: Discussioncontrasting

confidence: 81%

“…This is the first study in South Africa that investigated determinants of cysticercosis identification rates using a multivariable modelling approach. The overall cysticercosis identification rates was generally low (0.7%), although higher than the 0.2% reported in an earlier study done in the North West Province of South Africa in 2011 [ 18 ]. However, it was lower than the 1.6% reported in Matabeleland Province of Zimbabwe [ 13 ].…”

Section: Discussionmentioning

confidence: 55%

“…The higher identification rates in high throughput abattoirs as compared to low throughput abattoirs contradicted the findings by Dzoma (2011), who reported a high proportion of cysticercosis in low throughput abattoirs [ 18 ]. This could be due to the fact that meat inspectors working in high throughput abattoirs are more likely to be experienced due to the large numbers of carcasses they handle resulting in the higher identification rates observed in the current study.…”

Section: Discussionmentioning

confidence: 92%

“…Studies done in Europe have demonstrated a prevalence of 3.09% of bovine cysticercus in Belgium [ 15 ] and 1.23% in France [ 16 ]. In Africa, a prevalence of 19.7% has been reported in Ethiopia [ 17 ] and 0.2% in the North West province of South Africa [ 18 ]. However, there is no evidence of any studies that have been done to assess the prevalence of the condition among animals slaughtered in abattoirs in Gauteng province, South Africa.…”

Section: Introductionmentioning

confidence: 99%

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Disparities in Beef Tapeworm Identification Rates in the Abattoirs of Gauteng Province, South Africa: A Descriptive Epidemiologic Study

et al. 2016

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BackgroundBovine Taenia saginata cysticercus infections (also called bovine cysticercosis or beef measles) is usually diagnosed in cattle only during post-mortem meat inspection. The aim of this study was to investigate the identification rates of these infections in and to identify predictors/determinants of variations in the identification rates in abattoirs in Gauteng province, South Africa.MethodsRetrospective data for over 1.4 million cattle carcasses inspected in 26 abattoirs between January 2010 and December 2013 were used for the study. The identification rates (proportion of bovine Taenia saginata cysticercus positive carcasses) were computed and generalized estimating equations used to identify predictors/determinants of identification rates.ResultsThe overall identification rate was 0.70% (95% CI: 0.45, 0.95). Significantly (p< 0.05) lower rates were reported during summer (0.55%) than other seasons. Some geographic areas reported significantly (p<0.05) higher rates than others. The identification rates in high throughput abattoirs was significantly (p<0.05) higher (RR: 9.4; 95% CI: 4.7–19.1) than in low throughput abattoirs. Similarly, the identification rates among animals from feedlots were significantly (p<0.05) higher (RR: 1.6; 95% CI: 1.7–3.5) than those from non-feedlot sources. No significant (p>0.05) association was identified between identification rates and either the number of meat inspectors per abattoir or the provider of inspection services.ConclusionAlthough no significant association was found between identification rates and provider of inspection services, follow-up studies will need to be done to specifically investigate the potential conflict of interest arising from the fact that abattoir owners hire meat inspection services directly. Capture of abattoir surveillance data needs to include farm address and for each case to be reported separately. Finally, information on the type of identified cysts (alive or calcified) need to be collected to help better estimate risk to consumers. This study provides useful baseline data to guide future studies, surveillance and control efforts.

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Section: Discussioncontrasting

confidence: 81%

Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Disparities in Beef Tapeworm Identification Rates in the Abattoirs of Gauteng Province, South Africa: A Descriptive Epidemiologic Study

et al. 2016

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“…Cysticercus bovis was the most prevalent (15.81%) of the five species of cestodes reported in Nigeria. This PPE is considerably higher than the ranges documented in other developing countries of Africa (0.2–5.6%) [ 45 – 47 ] and elsewhere (0.09–3.0%) [ 48 – 50 ]. The occurrence of this metacestode alongside hydatid cysts in food animals that entered the food chain is a threat to public health considering their association respectively with cysticercosis and cystic echinococcosis in humans.…”

Section: Discussioncontrasting

confidence: 56%

Helminths of veterinary and zoonotic importance in Nigerian ruminants: a 46-year meta-analysis (1970–2016) of their prevalence and distribution

Karshima¹,

Maikai²,

Kwaga³

2018

Infect Dis Poverty

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BackgroundThe livestock industry plays a vital role in the economy of Nigeria. It serves as a major source of income and livelihood for majority of Nigerians who are rural settlers and contributes about 5.2% to the National Gross Domestic Product (GDP). Helminths however, cause economic losses due to reductions in milk production, weight gain, fertility and carcass quality. Zoonotic helminths of livestock origin cause health problems in humans.MethodsUsing the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines, the prevalence and distribution of helminths of veterinary and zoonotic importance in Nigerian ruminants were determined in a meta-analysis of data published between 1970 and 2016. Data were stratified based on regions, hosts, study periods, sample sizes and study types while helminths were phylogenetically grouped into cestodes, nematodes and trematodes.ResultsData from 44 studies reported across 19 Nigerian states revealed an overall pooled prevalence estimate (PPE) of 7.48% (95% CI: 7.38–7.57) for helminths of veterinary and zoonotic importance from a total of 320 208 ruminants. We observed a significant variation (P < 0.001) between the PPEs range of 1.90% (95% CI: 1.78–2.02) and 60.98% (95% CI: 58.37–63.55) reported across different strata. High heterogeneity (99.78, 95% CI: 7.38–7.57) was observed. Strongyloides papillosus was the most prevalent (Prev: 32.02%, 95% CI: 31.01–33.11), while, Fasciola gigantica had the widest geographical distribution.ConclusionsHelminths of veterinary and zoonotic importance are prevalent in ruminants and well distributed across Nigeria. Our findings show that helminths of ruminants may also be possible causes of morbidity in humans and economic losses in the livestock industry in Nigeria. High heterogeneity was observed within studies and the different strata. Good agricultural practices on farms, standard veterinary meat inspection and adequate hygiene and sanitation in abattoirs, farms and livestock markets need to be implemented in Nigeria in order to reduce the economic, public health and veterinary threats due to these helminths.Electronic supplementary materialThe online version of this article (10.1186/s40249-018-0438-z) contains supplementary material, which is available to authorized users.

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The prevalence of Taenia saginata cysticercosis in the Matabeleland Provinces of Zimbabwe

Sungirai

Masaka

Mbiba

2014

Trop Anim Health Prod

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Records were collected for Taenia saginata cysticercosis infections in cattle slaughtered at the Cold Storage Company Abattoir in Bulawayo, Zimbabwe, between January 2006 and December 2007. The cattle were drawn from the two Matabeleland provinces in the dry western and southern parts of the country. A total of 86,080 cattle were slaughtered during the period. The average prevalence of T. saginata cysticercosis was found to be 1.6% (n = 1 364) with Matabeleland North having a higher prevalence of 2.8% (n = 629) and Matabeleland South 1.2% (n = 735). There were no significant seasonal differences (p > 0.05) in incidences of T. saginata cysticercosis during the study although numerically, the prevalence of T. saginata cysticercosis was higher in the wet season. There was no significant difference (p > 0.05) in the prevalence of T. saginata cysticercosis in different age classes of cattle slaughtered. Of the infected carcasses, a great proportion of these had live cysts (1.4%) while few had dead cysts (0.2%). Most of the cattle condemned were below the age of 2 years and some were full adults (p < 0.05). There was a significant association between farm type (p < 0.05) and prevalence of T. saginata cysticercosis with most infections being observed in the communal farming system. Though the prevalence of T. saginata cysticercosis appears to be low, there is a need to conscientize the farmers to avoid losses due to carcasses condemnation at slaughter houses which will have a negative financial impact to the individual farmer. There is also a need to investigate such cases even further to reduce zoonotic consequences due to the undetected cases in communal areas.

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Prevalence of Bovine Cysticercosis in the North West Province of South Africa from 2000 to 2010

Cited by 5 publications

References 15 publications

Disparities in Beef Tapeworm Identification Rates in the Abattoirs of Gauteng Province, South Africa: A Descriptive Epidemiologic Study

Disparities in Beef Tapeworm Identification Rates in the Abattoirs of Gauteng Province, South Africa: A Descriptive Epidemiologic Study

Helminths of veterinary and zoonotic importance in Nigerian ruminants: a 46-year meta-analysis (1970–2016) of their prevalence and distribution

The prevalence of Taenia saginata cysticercosis in the Matabeleland Provinces of Zimbabwe

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