Prevalence Of Bovine Cysticercosis Research Articles

Prevalence of Bovine Cysticercosis, Human Taeniasis and Associated Risk Factors in Selected Towns of Silte Zone

Bovine cysticercosis is an infection of cattle caused by the larval stage of Cysticercus Bovis, the human intestinal cestodes and it has economical and public health importance. Across-sectional study was conducted from March 2022 to August 2022 to determine the prevalence of Bovine Cysticercosis, Human Taeniasis and associated risk factors in selected towns of Silte zone. The study was conducted in Silte zone municipal abbatoir in cattle slaughtered at Kilto, Kutery, Kirate and Werabe town municipal abattoirs. Systematic random sampling technique was used to collect data from abattoir survey of the study animals and questionnaire survey collected data stored by using in Epi data software and analyzed using (SPSS-22) software program. The study animals were 422 cattle which were systematic randomly selected. The present study revealed that the overall prevalence of C.bovis was 36 %, which indicated a high prevalence of the parasite in the study area. A prevalence of 35.7%, 35.92%, 37.96% and 34.11% were Kilto, Kutery, Kirate and Werabe Tawon were observed, respectively. Among considered risk factors, sex, body condition and breed showed statistically significant difference in prevalence of C. bovis in study area. Regarding the anatomical distribution of the cysts, shoulder muscle showed highest prevalence 28.44%, was followed by tongue 20.79% tricepsbrachi muscle 18.35%, masseter muscle 17.74%, heart 12.84%, and liver 1.8%. Out of 110 respondents, 64.5% had contracted T.saginata. Among considered risk factors, sex, age , occupation, education status, raw meat consumption and knowledge about the disease, showed statistically significant difference in prevalence of T. saginata in study area. The findings of this study indicated that importance of Bovine Cysticercosis and Taeniasis in the study area. Therefore, attention should be given to the public awareness, detailed meat inspection to be safe to public health, consumption of well-cooked cattle meat should be implemented for breaking the cycle of the diseases and promote meat industry in the country.

Prevalence of cysticercosis in cattle slaughterhouses in the western region of Minas Gerais, Brazil (2013-2020): Influence of sanitary regulations in reducing risks to human health.

Bovine cysticercosis is a foodborne zoonosis that has a worldwide distribution, and its highest prevalence is found in developing countries with a large volume of cattle production, such as Brazil. The objective was to evaluate the prevalence of cysticercosis during seven years in three slaughterhouses located in the western region of Minas Gerais state, Brazil, and the impacts of the legislation on the identification and destination of infected carcasses. Three slaughterhouses (Sl) were selected for this study with averages of 200 (SlA), 721 (SlB) and 1138 (SlC) bovines slaughtered per day. The monthly number of slaughtered cattle, infected carcasses with cysticercosis and destination were used to calculate the condemnation occurrence index (COI) and the adjusted seasonal index (ASI). To assess the impact of the legislation, the prevalence rate and destination of infected carcasses were subdivided into the PRE (January 2013 to March 2017) and POST (April 2017 to December 2020) period of Decree 9013 of 2017 and the results were compared by chi-square (P<0.05). SlA recorded the highest cysticercosis rate with 1.54 % and SlC the lowest rate with 0.33 %. In addition, it was observed that in the POST period there was an increase in the identification of infected carcasses in SlA and B (P<0.05). The POST period also resulted in a change in the relative frequency of infected carcasses destination in the three slaughterhouses (P<0.05). The ASI identified an increase in infected carcasses in February and a decrease in November for SlB, proving to be an important tool for planning the inspection team trainings. These results show that the disease is still present in the studied region and highlight the benefits of using the One Health concept in the evaluation of a time series prevalence of bovine cysticercosis by: identifying seasonality of the disease, trends during the time period and impacts brought by updates in the national sanitary legislation.

Prevalence and Public Health importance of Bovine Cysticercosis in Haramaya Municipal Abattoir, East Hararghe Zone of Oromia Regional State, Eastern Ethiopia

Aim This study was conducted by using the protocols of post-mortem examinations of meat (visual inspection) to determine the prevalence of bovine cysticercosis in the cattle slaughtered at Haramaya Municipal Abattoir, Eastern Hararghe, Ethiopia and to determine zoonotic significance of taeniasis. Method A cross-section study design was conducted from November 2020 to March 2021, based on routine meat inspection on simple randomly selected cattle slaughtered at the abattoir. Visual inspection of all exposed surface was made in all active organs. They are shoulder muscles, hearts, masseters (cheek muscle), diaphragms, tongues and livers. This is followed by incision of all those organs to be examined for Cysticercus bovis cysts. Results Twenty-one (21) of the 384 cattle examined utilizing the post-mortem examinations meat inspection methodology were positive for C. bovis, resulting in a prevalence of 5.5 %. The masseter muscle (11.5 %) had the highest prevalence of cysts, followed by the triceps (8.3%), heart (5.8%), liver (4.8 %), and tongue (2.9 %). The sex-based prevalence rates were 10 (3.4%) and 11 (12.1%), respectively. The predominance of bodily condition was found to be good (1.3%), medium (11.1%), and bad (50 %). The prevalence male and female e differed substantially by organ, sex, and bodily condition (p&gt;0.05), but not statistically significant by age of the animals (young 2.8% vs. adult 6.1%) (p&gt;0.05). Eight (20%) of the total 40 interviewees had contracted Taenia saginata infection at least once in their lives. Religion showed a significant difference (p&gt;0.05) (Christian 66.7% and Muslim 6.5%). However, there was no statistically significant difference in meat consumption habits (raw 31.6% vs. cooked 9.5%), sex (male 26.5% vs. female 11.8%), age (young 33.3% vs. adult 17.7%), educational status (illiterate 22.2% vs. elementary 14.3% vs. high school 27.3% vs. college 16.7%) or latrine use (proper users 19.4% and non-proper users 25%). Conclusion This study to increasing public awareness of the disease, as well as strict routine meat inspections, should be prioritized in order to decrease the parasite's impact.

Prevalence of Bovine Cysticercosis in Jigjiga City Municipal Abattoir and Treatment Costs of Human Taeniasis

Combination of Cross-sectional and retrospective study was conducted from Jan 2021 up to Jun 2021 in Jigjiga city Municipal abattoir and inventory of pharmaceutical drug shops, with the objectives of determining the prevalence of bovine cysticercosis and treatment costs of human taeniasis. Systematic random sampling technique was employed for selecting the study animals, while the Sampling methodology was based on Active abattoir survey and Inventory of pharmaceutical drug shops. From the 520 animals examined at abattoir, the overall prevalence of cysticercus bovis was 2.69% (14/520) with 95% CI of (1.43, 4.29). There was no statistically significant difference in sex, age, body condition score and origin of the animal with the occurrence of C. bovis (P&gt;0.05); From 14 infected cattle with cysticercus bovis, 7 (50%) of cysticercus bovis were in the triceps muscle, 5 (35.71%) in tongue, 1 (7.14%) in biceps muscle and 1 (7.14%) in masseter muscle. Descriptive statistics revealed that a total of 23,063 doses of taenicidal drugs concern a 4-year period (2017-2020) were used for the treatment of human taeniasis which worth 56,933 Ethiopian Birr in the town. Albendazole was employed at a rather high dose, followed by Mebendazole, Praziquantel, and Niclosomide, in that order. The most commonly prescribed medicines for the treatment of taeniasis were albendazole and mebendazole. The discovery highlights the importance of cysticercosis and taeniasis in terms of both economics and public health. To reduce the impact of this parasite, special focus should be paid to raising public awareness and conducting thorough routine meat inspections.

Epidemiological status of bovine cysticercosis and human taeniasis in Eastern Ethiopia

Bovine cysticercosis and human taeniasis are among the leading cause of economic loss in Ethiopia due to organ condemnation and treatment costs. A cross-sectional study was conducted from September 2017 to July 2018 on randomly selected carcasses from Jigjiga, Babile and Dire Dawa town municipal abattoirs to estimate the prevalence of bovine cysticercosis. Besides, a questionnaire was administered to the human population of these towns to understand risk of human taeniasis. The overall prevalence of Cysticercus bovis was 27.3% (302/1108). Among the examined predilection sites, the highest prevalence was observed in the liver (9.6%), and the tongue (8.5%). From the total of 686C. bovis cysts collected, 289 (42.0%) were viable, while the other 397 (58.0%) were non-viable cysts. Three predictors, namely study location, age and body condition, were significantly associated with C. bovis (p ≤ 0.001). Among the 900 respondents interviewed, 432 had contracted Taenia saginata infection. Risk factors like occupation, sex, marital status, educational status and raw beef consumption habit were significantly associated with T. saginata infection (p ≤ 0.001). The findings of this study indicated the importance of bovine cysticercosis and taeniasis in the study areas. Therefore, attention should be given to public awareness and detailed meat inspection for the safety of the public and promotion of the country's meat industry.

Distribution of bovine cysticercosis prevalence in the southeastern districts of Botswana from 2015 to 2016.

Background and Aim:Bovine cysticercosis is defined as a foodborne parasitic zoonotic disease of cattle caused by the larval stage of the human tapeworm Taenia saginata. In Botswana, bovine cysticercosis has inflicted major economic consequences on the beef industry due to downgrading, condemnation, or treatment of infected carcasses. Thus, in this study, we aim to (1) estimate the prevalence of bovine cysticercosis in Botswana’s southeastern districts, (2) describe the distribution of bovine cysticercosis through geospatial mapping, and (3) investigate the effect of seasonality on bovine cysticercosis occurrence.Materials and Methods:A retrospective study was conducted using abattoir records of cattle slaughtered from August 2015 to July 2016. In total, 13 licensed non-export abattoirs were selected for this study, wherein 26,827 cattle were slaughtered during this period. Detection of cysticerci from the carcass and offal was carried out by meat inspectors visually during meat inspection. Prevalence of bovine cysticercosis was calculated for the extension areas and veterinary districts for each month and form there used to establish its distribution and seasonality. Data were analyzed using SPSS version 25.0.Results:The prevalence of bovine cysticercosis in the southeastern districts of Botswana during this study period was determined to be 6.2%. The prevalence in the veterinary districts differed significantly at p<=0.000. Seasonality did not have a significant (p=0.651) effect on the prevalence of bovine cysticercosis. Geospatially, areas with greater than 8% prevalence were mainly located in the southernmost part of the study area.Conclusion:The prevalence of bovine cysticercosis was 6.2% during the study period. No previous studies on cysticerci prevalence in the study area was conducted; thus, it was not possible to determine whether there has been an increase or decrease in terms of prevalence rate. Therefore, the results of this study can be used as a baseline for the prevalence of cysticerci in the study area.

Epidemiologia e impacto econômico da cisticercose bovina no Estado do Espírito Santo, Brasil

ABSTRACT: Bovine cysticercosis (BCC) is an important disease in Brazil due to its detection in abattoirs, resulting in economic losses for cattle farmers, and a public health corcern. Besides its importance, the knowledge about BCC epidemiology and impact remains not fully described in several areas in this country, requiring more studies. Thus, this study focused on establishing BCC prevalence in the regions and municipalities of the state of Espírito Santo from 2017 to 2019, establishing the associated risk factors, and estimating the economic losses for cattle farmers. A set of 2,330 cases of BCC was detected in the 407,529 bovine inspected by Federal Inspection Service (0.57%; C.I. 95% 0.55 - 0.60%) with a higher detection of unviable cysticercus (66.14%). The beef producers lost at least US$153,000.20 due to BCC through this period. The highest risk for BCC infection occurred in Metropolitana (OR = 9.19), Litoral Sul (OR = 7.77), Caparó (OR = 7.44), and Central Sul (OR = 7.19) mesoregions, respectively. The BCC was detected in animals from 67 municipalities and its prevalence increased in areas with high human population density (OR = 1.58;; p = 0.01). In conclusion, BCC is an important disease for beef production chain in the Brazilian state of Espírito Santo and a cause of economic losses, mainly in some areas, and urgently requires the adoption of prophylactic strategies to reduce the ocurrence of this parasite.

Prevalence of Taenia saginata cysticerci in Addis Ababa Abattoir Enterprise, Ethiopia

An abattoir-based survey was conducted in Addis Ababa from December 2018 to April 2019 with the objectives of determining the prevalence of bovine cysticercosis and the viability of Taenia saginata cysticerci. Routine meat inspection was performed on the study animals. Palpation followed by incision of the heart, tongue, triceps muscle, masseter muscle and diaphragm were made to detect the presence of T. saginata cysts. From the detected cysts, 41 were randomly selected and subjected to viability test. From the total 500 study animals, 14(2.8%) had varying number of T. saginata cysts. The highest proportion of T. saginata cyst was observed in the triceps muscle 6(42.8%), followed by heart 3(21.4%), tongue 2(14.3%) and masseter muscle 2(14.3%). There was no cyst observed in the liver or diaphragm. Of the total randomly selected 41 cysticerci, 20(48.8%) were found to be viable while the rest 21(51.2%) cysticerci were found to be non-viable. Sex, breed, age, and body condition of the study animals were found to have no significant association with the occurrence of cysticerci (P > 0.05). Even though routine meat inspection has low sensitivity and usually under-estimates the prevalence of the disease, bovine cysticercosis was found to be prevalent in the study area. Therefore, an appropriate control program involving enforcement of meat inspection, promoting public awareness and improving personal and environmental hygiene should be designed and implemented.

Bovine cysticercosis in the State of São Paulo, Brazil: Prevalence, risk factors and financial losses for farmers

Taenia saginata is the causative agent of bovine cysticercosis (BCC) and human taeniasis, two diseases that have economical and public health importance, respectively. This research focused on determining BCC prevalence in the state of São Paulo state, Brazil, in the period of 2017–2019, as well as associating risk factors related to disease occurrence and estimate the economic impact to beef producers. Data from 6,277,758 bovine carcasses originating from 571 municipalities and 15 different mesoregions in the state of São Paulo was gathered and analyzed. Cysticerci were detected in a total of 88,700 carcasses at meat inspection, resulting in an apparent prevalence of 1.41 % (C.I. 95 % 1.40–1.42 %). BCC was widespread in this state and its spatial distribution varied in municipalities and mesoregions. The variable number of milking cows in the municipality was significantly associated (OR = 1.48, p = 0.00) with BCC cases, conversely, the presence of peasant’s settlements in the municipality was a protective factor (OR = 0.49, p = 0.02). Financial losses for cattle farmers were estimated at US$ 5,829,103.99. The results of this research show that there is still room for implementation of bovine cysticercosis control measures in endemic areas, aiming to reduce financial losses to farmers as well as reduction of human taeniasis cases in the population.

English

Most available data on Taenia saginata taeniosis/cysticercosis risk factors in Botswana neither associate risk factors with Batswana&rsquo;s lifestyle nor rank risk factors&rsquo; contribution to observed prevalence. This disconnect undermines usability of data for bovine cysticercosis control. This study identified bovine cysticercosis risk factors and quantitatively ranked risk factors&rsquo; contributions to observed prevalence. Visual observation and interviews using Likert scale-formatted questionnaire was employed in collecting primary data from beef industry&rsquo;s stakeholders (149). Fourteen (14) out of eighteen (18) risk factors jointly predicted bovine cysticercosis prevalence (p &lt;0.05), but the only factor of &lsquo;beef sold at non-licensed premises&rsquo; predicted prevalence individually. Top 20% important risk factors were absence or distant pit latrines in farms (p &lt;0.05; MD=1.288; CI: 1.15-1.43), proximity to uncontrolled human defecate (p &lt;0.05; MD=1.184; CI=1.03-1.34), access to contaminated pasture (p &lt;0.05; mean=4.13; MD=1.131), and failure to deworm herd boys (p &lt;0.05; mean=4.10; MD= 1.097). Current prevention strategies in Botswana emphasizes proper disposal of human defecate. However, this study showed that minimizing butchers buying and slaughtering animals without proper ante-mortem and post-mortem examination would yield more efficient result. By adopting Pareto principle, this study modeled that controlling these top 20% important risk factors instead of targeting a repertoire of risk factors would result in 80% prevalence drop. Respondents showed greater consensus on risk factors with high odds to cause bovine cysticercosis. This consensus provides platform for driving attitudinal change, since risk factors were lifestyle-related. Associating people&rsquo;s lifestyle with risk factors of this zoonosis while targeting top 20% risk factors yields more efficient control outcomes. Key words: Batswana&rsquo;s lifestyles, Taenia saginata/cysticercosis, ranking risk factors, prevalence, Pareto principle, efficient control and prevention.

Investigation of Cysticercosis bovis prevalence using passive abattoir post-mortem inspection and active administration of structured non-participatory questionnaire to farmers in Botswana.

Most government published statistics of C. bovis prevalence in Botswana emanate mainly from records available at the Botswana Meat Commission (BMC), the country's national export abattoir. Although BMC slaughters 44% of Botswana's annual cattle slaughter, prevalence data arising from BMC does not reflect prevalence from lower throughput abattoirs and potential hotspots. Thus, reporting national prevalence rate using solely BMC statistics may not be very informative and reflective of the bigger picture. It therefore became imperative to probe prevalence of bovine cysticercosis using a cross-sectional study through passive abattoir inspection, covering a wider scope (more regions) and some lower throughput abattoirs previously not accounted for. Furthermore, non-participatory interview using structured questionnaires was employed to actively elicit prevalence information directly from meat industry stake holders. Prevalence arising from survey was used to compare and query results from statutory (traditional) passive abattoir method. Abattoir prevalence was 17.17% (SE = 1.70027), and survey prevalence was 42.35%; both of which were higher than published prevalence of 13.5% and BMC prevalence of 10% (SE = 0.006576). Survey method was more holistic than passive abattoir method, by covering more frontiers thus yielding higher prevalence. At p = 025, abattoir and survey prevalence were significantly different from each other. In addition to delimitating novel hotspots in Botswana, this study showed significant difference, p = 0.002 in prevalence within districts and regions. Kalagadi district's prevalence differed significantly from other districts: differed from North East at p = 0.042, Central district at p = 0.002 and Ghanzi at p = 0.004. The results which arise from this methodological approach have been able to provide a more all-inclusive and reliable prevalence rate.

Epidemiology of bovine cysticercosis and associated economic losses in the state of Rio Grande do Sul, Brazil.

Bovine cysticercosis (BCC) is the most frequently detected zoonosis in Brazilian slaughterhouses and is considered a problem for public health and beef production chain, requiring epidemiological studies focusing on evaluating its prevalence, spatial distribution, and economic losses in order to improve and adopt specific strategies for BCC control. Thus, this study focused to establish BCC prevalence and spatial distribution in the state of Rio Grande do Sul, Brazil, and estimate the economic losses for cattle farmers suppliers of one exporter slaughterhouse. A set of 70,591 bovine carcasses were postmortem inspected from 2019 to 2020, which came from 134 municipalities located in eight distinct regions in the state of Rio Grande do Sul. The prevalence found was 3.44% (C.I. 95% 3.30-3.57%), and animals infected with unviable cysticerci were more frequently detected (70.56%) than those carrying viable ones (29.44%). The most frequent destination of carcasses and viscera was non-export (65.48%), followed by freezing/salting (25.41%), heat treatment (8.74%), and rendering (0.37%), resulting in a total economic burden of at least US$ 167,868.53 for cattle farmers. Some regions had higher risk for BCC occurrence, such as Porto Alegre, Caxias do Sul, Santa Maria, Ijuí, and Passo Fundo (OR > 1, p < 0.05), respectively. These results highlight the need of adopting prophylactic measures, mainly in specific areas, in order to control BCC and reduce the economic losses for beef production chain.

Bovine cysticercosis and human taeniasis in a rural community in Ethiopia.

Bovine cysticercosis is a worldwide zoonotic disease that affects cattle caused by the larval stage of the tapeworm Taenia saginata, the adult parasite that causes taeniasis in humans. Although bovine cysticercosis, and the associated human taeniasis, is controlled in developed countries, it is one of the neglected tropical diseases. Like other parts of Ethiopia, raw or undercooked beef consumption is common in the rural community of Yem district with no meat inspection services. We conducted an abattoir survey to estimate the prevalence of bovine cysticercosis in cattle and a questionnaire survey to determine the level of historical human taeniasis infection in Yem district of Ethiopia. Bovine cysticercosis was detected in 3.1% of 485 cattle examined. Although animal level prevalence was low, a subset of positive animals had a higher rate of cysticercosis infection widely distributed in various parts of the body. Over two-fifths (40%) of the cysts were found in the tongue making it an important organ to look for during meat inspection. Over half of the cysts were viable indicating their potential to infect people. History of taeniasis was reported by 71.5% of 151 residents interviewed during the study. Raw meat consumption was very common (89.4%) among the residents; people who consumed raw meat were 25 times more likely to report taeniasis than those who did not. In addition, traditional treatments using herbs and chemicals of unknown efficacy and risk were very common. Bovine cysticercosis and human taeniasis are important in this rural community. Providing meat inspection services and public health education on intervention measures such as proper cooking of meat, access to latrines and clean water are effective strategies that can break the lifecycle of the parasite and ensure beef safety and public health.

Diagnostico de cisticercose bovina em frigorífico na região noroeste do estado de São Paulo, Brasil

Bovine cysticercosis is a zoonosis caused by Taenia Saginata, which presents a high risk to the consuming population of bovine meat and with great impact on animal production. The objective of this study was to diagnose the prevalence of bovine cysticercosis in the Northwest region of the state of São Paulo, Brazil, and to investigate which municipalities provide the most animals for slaughter. The diagnosis of zoonosis was made using the method of visualization of cysts in the carcass in inspection performed under the Official Inspection Service, under the supervision of a Veterinarian. For the estimation of the prevalence data were used from the period of the year 2007 to the year 2016 provided by Frigorific Ilha Solteira Ltda. and for the investigation of the cities of origin of the animals were used data from the year 2007 to the year 2014. The prevalence of bovine cysticercosis in the Northwest region of the State of São Paulo, Brazil between the years 2007 to 2016 was 4.83%, and the municipalities that provided the most animals for slaughter at Frigorific Ilha Solteira Ltda. were Pereira Barreto, followed by the municipalities of Santo Antônio do Araranguá, Sud Mennucci, Mirandópolis and Guaraçai.

Systematic review and meta-analysis of bovine cysticercosis in Brazil: current knowledge and way forward

BackgroundTaenia saginata taeniosis/cysticercosis has been well studied in several countries. Brazil is one of the most important beef exporting countries and has one of the highest cattle population size in the world. In this country, bovine cysticercosis (BCC) remains the most frequent reported zoonosis detected during post-mortem inspection, resulting in costs for the beef sector and public health. We performed a systematic literature review regarding data about BCC epidemiology in Brazil and meta-analyses for its prevalence in different administrative regions and the distribution over time, and based on this discussed possible control strategies.MethodsA systematic review was conducted to obtain data about BCC in Brazil using the words “bovine cysticercosis” and “Brazil” to construct the search phrase. The inclusion criteria used to select articles were: (i) published from 2000 to 2018; (ii) full text available online in Portuguese or English; and (iii) contain information at least regarding one of the following aspects of BCC in Brazil: prevalence, incidence, spatial distribution, risk-factors, economic burden and measures for control.ResultsA set of 42 articles was included, covering the prevalence of BCC in Brazil, ranging between 0.01–18.75%. Prevalence results of 40 articles were included in a meta-analysis per administrative region. The highest prevalence was found in the South (3.4%; 95% CI: 2.0–5.2%), followed by the Southeast (2.7%; 95% CI: 1.9–3.6%), Northeast (1.5%; 95% CI: 0.6–2.7%), Central-western (0.9%; 95% CI: 0.3–1.7%) and North (0.0%; 95% CI: 0.0–0.6%) region. In addition, a reduction in prevalence over time was observed in all the evaluated states except for Alagoas and Pará.ConclusionsBesides the large availability of data, a critical lack of information about BCC epidemiology remains in Brazil. Nevertheless, the available data on prevalence, high risk-areas and risk factors should contribute to a better understanding of transmission and the formulation of recommendations for control. A One Health approach will be required to reduce T. saginata taeniosis/cysticercosis prevalence and the consequent economic burden for the beef sector in Brazil, one of the most important beef exporters in the world.

Prevalence and geographical distribution of bovine cysticercosis in the mesoregion of Northern Minas Gerais

ABSTRACT The knowledge of the prevalence of bovine cysticercosis is important for the implementation of control programs. The objective was to evaluate the prevalence and geographical distribution of bovine cysticercosis in Northern Minas Gerais. For that, 14,556 cattle were evaluated during the federal post-mortem inspection in 27 municipalities of five microregions: Janaúba, Montes Claros, Januária, Pirapora and Bocaiúva. The prevalence of Cysticercus bovis was 1.03% with distribution in all microregions evaluated of the northern Minas Gerais. All municipalities with a sampling number of cattle slaughtered above 543 showed positive animals for cysticercosis. The microregions of Bocaiúva, Montes Claros, Janaúba, Januária and Pirapora presented a prevalence of cysticercosis at 2.11%, 1.17%, 1.01%, 0.90% and 0.56%, respectively. The microregions of Montes Claros and Januária presented a greater chance of finding positive cattle for cysticercosis. As there are positive cases of cysticercosis in all microregions evaluated, there is a risk to human health.

Prevalence of Cysticercosis Bovis in Eastern Shoa of Oromia, Ethiopia

Bovine cysticercosis is an infection of cattle caused by the larval stage, Cysticercus bovis of the human intestinal cestode, Taenia saginata . It is an infection of public health significance as eating of raw or undercooked beef results in taeniasis in human population and an important cause of economic loss mainly due to condemnation and downgrading of infected carcasses. A cross sectional study was conducted during April 2016 to August 2016 to estimate the prevalence of bovine cysticercosis in cattle slaughtered at Meki municipal abattoir. Routine inspection of carcasses and viability test were amongst the methods employed during data collection. Post mortem examination of 876 slaughtered cattle showed that 269 (30.7%) were infected with T. saginata . Out of the total 447 cysts detected, 216(48.3%) were found to be viable, while 231(51.7%) were died cysts. The tongue, lung, masseter muscles, heart and triceps muscles were the main predilection sites of the cysts. Anatomical distribution based analysis of the cyst showed that highest proportions were observed in tongueas (15.5%) followed by lung (14.4%), masseter muscle 90(10.3%), heart 61(6.9%) and triceps muscle 34(3.9%). Out of the 785 male cattle examined, 237 (30.2%) had cysts of bovine cysticercosis while 32 (35.2%) of the 91 female were infected. The prevalence varied significantly (P&lt;0.05) between age groups, origin of animals and body condition score of animals, but no significant variation between sex of the animals. With respect to viable cysts, it was revealed that lung (51.1%), tongue (48.9%), heart (28.6%), masseter muscle (19.5%) and triceps muscle (14.3%) were infected in decreasing order. The current study suggests that high prevalence of T. saginata metacestodes were observed in the source of animals and therefore sufficient emphasis should be given to this problem so as to improve health, quality and quantity of bovine that may satisfy the domestic requirements of the area and the country as general. Keywords: Bovine, cysticercosis bovis, prevalence, Meki abattoir, Ethiopia DOI : 10.7176/JBAH/9-7-09 Publication date : April 30 th 2019

Relação da precocidade de terminação e a redução da prevalência de cisticercose em bovinos

This study aimed to group cattle carcasses with similar characteristics to assess the group-specific prevalence of cysticercosis using data from the slaughter of 15,002 cattle. The following variables were recorded: carcass weight, cover fat, individual age, and prevalence of cysticercosis. A k-means clustering method was used to examine the relationship between carcass characteristics and the prevalence of cysticercosis. We did not specify the number of clusters before the analyses but used automatic methods based on a cross-validation to select the best-fitting clusters. One of the three produced clusters included carcass weight, cover fat, and age, as desired by the Brazilian meat industry. This cluster showed a reduced prevalence of cysticercosis (P = 0.0147) and earlier finishing compared with the other groups. In conclusion, earlier finishing seems to be associated with a lower prevalence of bovine cysticercosis.

Abattoir Prevalence of Bovine Cysticercosis in Cattle Slaughtered at Haramaya Municipal Abattoir, Eastern Hararghe Zone Of Oromia Region

A cross - sectional study was conducted from November, 2011 to April, 2012 on bovine cysticercosis in cattle slaughtered at Haramaya Municipal Abattoir with the objectives of determining the prevalence of bovine cysticercosis and to characterize the viabilit y of the cyst. Out of 384 systematically selected slaughtered cattle, 28 (7.27%) were infected with Cysticercusbovis. A total of 126 cysts were collected in which 76 (60.32%) were viable while others 50 (39.68%) were degenerated. The anatomical distributio n of cysticerci was liver, heart, shoulder muscle, tongue, masseter and lung in decreasing order of cyst harboring. A statistical analysis of infection rate on the basis of origin of the animal and sex has no significant difference (p&gt; 0.05) but age has si gnificant difference (p&lt;0.05). In conclusion, the present study imply that the disease deserves due attention to safeguard the public health and promote beef industry in the country. Therefore, appropriate control and preventive measures should be taken in order to reduce the disease problem on public health even if its economic significance associated with cysticercosis is minimal.

Bovine cysticercosis and taeniosis: The effect of an alternative post-mortem detection method on prevalence and economic impact

In Europe, bovine cysticercosis (BCC) is detected by routine meat inspection (MI) at the slaughterhouse. The prevalence of BCC in Belgium based on MI is estimated at 0.23%. MI has a known low sensitivity for animals with localised infections and alternative detection techniques should be considered. A mathematical scenario-analysis model was built to determine the current prevalence of BCC in Belgium based on MI results combined with results of dissection of the predilection sites (PS) and the B158/B60 Ag-ELISA on serum of 614 carcasses found negative on MI. Additionally, the impact of the introduction of the B158/B60 Ag-ELISA at slaughter on the prevalence of BCC and taeniosis and on the economic impact related to Taenia saginata was estimated for Belgium. Data for estimating the economic impact were gathered from multiple sources within the meat and human health sectors and included value loss for infected carcasses, inspection costs, carcass destruction costs, cattle insurance costs and costs related to taeniosis (consultation physician, drugs and laboratory test). The model estimated the current prevalence of BCC to be 42.5% (95% CI: 32.4-60.7%) and the sensitivity of the MI for viable and degenerated cysticerci at only 0.54% (95% CI: 0.37-0.71%). A total of 213,344 viable cysticerci (95% CI: 122,962-386.249) were estimated to be present in the infected carcasses in one year and only 408 (95% CI: 356-464) of these were present in the carcasses detected at current MI. The annual number of human taeniosis cases is estimated at 11,000 by using the sale numbers of niclosamide in Belgium. Implementation of the Ag-ELISA at slaughter (Se = 36.37%; Sp = 99.36%) would greatly reduce the prevalence of BCC to 0.6% and the number of taeniosis cases to 89 in year 10. Unfortunately, the accompanying resulting increase in costs for the animal owners, slaughterhouses and the insurance company, would be extremely high in the first years. Cattle owners would suffer losses of up to €21 million in the first year after implementation of the Ag-ELISA (compared to an annual loss of €3.5 million in the current situation), slaughterhouses of €10 million (compared to €200,000 currently) and the insurance company of almost €6 million (compared to €2.3 million profit currently). Therefore, implementation of the Ag-ELISA might not be feasible and other options for controlling T. saginata should be investigated.