A survey of zoonotic diseases in trade cattle slaughtered at Tanga city abattoir: a cause of public health concern

Swai, ES; Schoonman, Luuk

doi:10.1016/s2221-1691(11)60190-1

Cited by 76 publications

(68 citation statements)

References 28 publications

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“…Brucella abortus biovar 1 has been detected in the Katavi-Rukwa ecosystem in Tanzania [8,19]. Previous studies have reported the prevalence of brucellosis in cattle to range from 2.2-12.3 % in different regions and management systems in Tanzania [10,11,20,21]. Similarly the present study indicates a difference in sero-prevalence in two geographically very closely areas.…”

Section: Discussionsupporting

confidence: 72%

“…These infections may cause different reproductive disorders including early embryonic death, abortion, stillbirth and fetal malformations [5][6][7]. In addition, Brucella is an important zoonotic agent, and its seroprevalence in cattle varies between regions in Tanzania [8][9][10][11]. In Tanzania, the prevalence of antibodies against BVDV has been found to be 12% and 17% in cattle and wildlife populations respectively [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Reproductive Infections in Cattle in Tanzania – Lessons for Control Priorities

Mathew¹,

Klevar²,

Løken³

et al. 2017

SOJMID

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Reproductive disorders have negative impact on performance in cattle worldwide. Studies on infections causing reproductive disorders in Tanzania are few and fragmented, which complicates targeted disease prevention. To investigate the prevalence of selected infections and their associations with reproductive disorders and risk factors in cattle under different management systems, a cross-sectional study was conducted in two bordering regions in the southern highlands in Tanzania. Herd and individual animal level data were collected by direct observation and a semistructured questionnaire interview of the farmer. Sera from 658 cattle from 202 herds were analyzed using a commercial ELISA kits for antibodies to Bovine Viral Diarrhea Virus (BVDV), Brucella spp. and Neospora caninum. The logistic regression model identified herd size (odds ratio (OR): 14.5), location (OR: 23.1) and management system (grazing strategy) (OR: 22.7) as risk factors for Brucella spp. The same risk factors were also identified for BVDV herd size (OR: 2.8), location (OR: 12.7) and management system (OR: 2.9). History of abortion was associated with seropositivity for Brucella spp. (OR: 4.6). No risk factors, including location and presence of dogs, nor any association with reproductive disorders were identified for N. caninum. In one region the herd level sero-prevalence was 66.7% for BVDV and 36.1% for Brucella spp., while in the other it was 6.5% for BVDV and 0.6% for Brucella spp. In total, BVDV specific antibodies were found in 15.2% of the animals in 17.9% of the herds, and Brucella spp. specific antibodies were detected in 5.4% of the animals in 7.4% of the herds. Anti-N. caninum antibodies were found in 4.5% of animals in 8.4% of the herds. In conclusion, prevalence and impact of BVDV and Brucella spp. differed significantly between geographically closely related areas, most probably due to differences in management system that affects the potential for survival of the agents in the population. This shows that all control measures must be based on accurate epidemiological knowledge of the occurrence of the infection. Low-prevalence areas are highly susceptible for introduction of infection, while in the high-prevalence areas control measures must be implemented to reduce the impact and the risk of transferring Brucella spp. from livestock to humans.

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Section: Discussionsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Reproductive Infections in Cattle in Tanzania – Lessons for Control Priorities

Mathew¹,

Klevar²,

Løken³

et al. 2017

SOJMID

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“…Brucellosis, caused by Brucella suis, is a major disease of pigs causing infertility, production of small litters, and abortion in sows. B. suis is a notable occupational hazard particularly to abattoir workers, farmers, and veterinarians (Radostits et al 2000;Swai and Schoonman 2012). Uganda has reported pig brucellosis to OIE between 1996 and 2000 (Scientific Opinion of the Panel on Animal Health and Welfare AHAW on a request from the Commission on porcine brucellosis Brucella suis 2009), but it is not clear how this was diagnosed and which strains or biovars were involved.…”

Section: Introductionmentioning

confidence: 99%

Serological and molecular investigation for brucellosis in swine in selected districts of Uganda

Erume

Kristina²,

Dione³

et al. 2015

International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork

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Brucellosis is a notifiable zoonotic disease affecting livestock, humans, and wildlife in Uganda. Pigs can be infected with human pathogenic Brucella suis biovars 1 and 3 and can be a significant source of brucellosis for humans. Uganda has a rapidly growing pig population, and the pork consumption per capita is the highest in East Africa. The objective of this work was to determine the seroprevalence of brucellosis in Ugandan pigs. A cross-sectional serosurvey of pigs was conducted in three of the major pig-keeping districts in Uganda (Masaka (n = 381 samples), Mukono (n = 398), and Kamuli (n = 414)). In addition, pigs originating from these districts were sampled in the major pig abattoir in Kampala (n = 472). In total, 1665 serum samples were investigated by serological and molecular tests. Only three putative brucellosis-positive samples were detected serologically using indirect ELISA. These sera were found negative for Brucella antibodies by CFT; however, two had antibodies against Yersinia enterocolitica as determined by SAT. Presence of a n t i b o d i e s ag a i n s t Ye r s i n i a e was c onf irmed b y Y. enterocolitica antibody-specific ELISA. The two Yersiniae ELISA-positive samples were brucellosis negative using real-time PCR. We tested additional 142 sera from the 1665 samples with real-time PCR. All tested negative. Under this type of production system, we expect a maximum B. suis prevalence of less than 1 % at 95 % confidence level, and therefore, the risk of acquiring brucellosis from the pigs or their products is negligible. However, pigs may harbor the zoonotic Y. enterocolitica. This is the first study to investigate the occurrence of brucellosis in pigs in Uganda and the first study to report Y. enterocolitica antibodies in swine in Uganda.

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“…This traditional system of beef production is generally marked by the treatment of animals (ante and post mortem) without any considerations of good hygiene practices (Heinz, 2008). This constitutes a serious public health problem today because many studies have identified the presence of dangerous germs of public health importance in these traditional slaughterhouses (Seeiso and McCrindle, 2009;Swai and Schoonman, 2012). Actually, many studies…”

mentioning

confidence: 99%

Typology of the Cameroon Traditional Slaughterhouses Based on Hygiene Practices

Afnabi¹

2014

Adv. Anim. Vet. Sci.

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A survey of zoonotic diseases in trade cattle slaughtered at Tanga city abattoir: a cause of public health concern

Cited by 76 publications

References 28 publications

Reproductive Infections in Cattle in Tanzania – Lessons for Control Priorities

Reproductive Infections in Cattle in Tanzania – Lessons for Control Priorities

Serological and molecular investigation for brucellosis in swine in selected districts of Uganda

Typology of the Cameroon Traditional Slaughterhouses Based on Hygiene Practices

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