Contamination of chicken carcasses in Gauteng, South Africa, by Salmonella, Listeria monocytogenes and Campylobacter

Nierop, W van; Duse, Adrian; Marais, Elsé; Aithma, Naseema; Thothobolo, N.; Kassel, Merel N van; Stewart, R B; Potgieter, A.; Fernandes, Beatriz Pasqualli; Galpin, Jacqueline S.; Bloomfield, Sally F.

doi:10.1016/j.ijfoodmicro.2004.06.009

Cited by 96 publications

(52 citation statements)

References 10 publications

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“…was not recovered from RTE products whereas average recovery rate in raw broiler products was 12.5%. This rate is lower than the 19.5% reported in the Gauteng Province of South Africa 13 7 and Sudan 9 , however, recorded lower incidences of NTS (4.7%, 5.92%, 8% and 9.2%, respectively) in broiler products than noted in the current study. Incidence of Salmonella contamination was higher in whole chicken carcasses (30%) than chicken parts (20%).…”

Section: Incidence Of Non-typhoidal Salmonella In Broiler Productscontrasting

confidence: 85%

“…A few investigations have been conducted in South Africa to ascertain the contamination of chicken carcasses and ready-to-eat foods from retail stores, with various pathogenic bacteria including Salmonella. 13,14 However, the incidence of NTS in broiler products in the North West Province (NWP) has not been established despite the fact that the NWP is one of the provinces with the largest production and distribution of broilers in the country. The objective of this study therefore was to screen raw and ready-to-eat broiler products obtained from the NWP of South Africa for incidence of NTS contamination.…”

Section: Introductionmentioning

confidence: 99%

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Incidence of non-typhoidal Salmonella in poultry products in the North West Province, South Africa

Olobatoke¹,

Mulugeta²

2015

S. Afr. J. Sci.

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This study was conducted to evaluate the incidence of non-typhoidal Salmonella (NTS) serotypes in raw and ready-to-eat (RTE) broiler products in the North West Province of South Africa. A total of 120 raw broiler samples, 40 samples of polonies and 20 samples of smoked viennas were obtained from retail points in major cities and towns in the province. Samples were subjected to aerobic plate count and later screened for the presence of NTS using phenotypic and genotypic techniques. The average bacterial count in raw products was 3.1 x 10 5 cfu/g whereas bacterial contamination of RTE products was 1.8 x 10 3 cfu/g. The average recovery rate of NTS species from raw broiler products was 12.5% and the serotypes identified were S. typhimurium (46.4%), S. enteritidis (30.9%) and S. newport (22.9%). No NTS was recovered from the RTE products. However, S. typhimurium was the predominant serotype in whole carcasses whereas S. enteritidis and S. newport were prevalent in chicken parts. Out of the 160 presumptive NTS isolates screened by polymerase chain reaction (PCR), 140 (87.5%) were confirmed for the presence of the Salmonella-specific invA gene. In addition, 115 (82.4%) of the confirmed isolates harboured the plasmid spvC gene. Random Amplified Polymorphic DNA (RAPD) fingerprinting of isolates using RAPD 1 and RAPD 3 primers, revealed some inter-and intra-serotype genetic diversity among isolates, suggesting varying sources of contamination. The results of this study represent the first report on the incidence and prevalent serotypes of NTS in chicken products in the North West Province of South Africa.

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Section: Incidence Of Non-typhoidal Salmonella In Broiler Productscontrasting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Incidence of non-typhoidal Salmonella in poultry products in the North West Province, South Africa

Olobatoke¹,

Mulugeta²

2015

S. Afr. J. Sci.

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“…Previous studies conducted in Gauteng province in 2004 in chicken carcasses entering the human food chain showed the presence of Salmonella species 35 . Studies from other countries have also shown that outbreaks and individual cases of salmonellosis in humans are most frequently associated with food products of animal origin and include eggs, meat, and milk byproducts 7,13 .…”

Section: Discussionmentioning

confidence: 93%

Retrospective study on the incidence of Salmonella isolations in animals in South Africa, 1996 to 2006

Kidanemariam¹,

Engelbrecht²,

Picard³

2010

J. S. Afr. Vet. Assoc.

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A retrospective study that involves the analysis of laboratory diagnostic data collected during the period 1996-2006 was conducted. A total of 3417 Salmonella isolations involving 183 different serotypes was recorded from 1999-2006, inclusive, at the Onderstepoort Veterinary Institute, Agricultural Research Council, South Africa. The most common serotypes were Salmonella enterica subspecies enterica serovar Typhimurium (917 incidents), Salmonella enterica subspecies enterica serovar Dublin (248 incidents), Salmonella enterica subspecies enterica serovar Enteritidis (232 incidents), Salmonella enterica subspecies enterica serovar Muenchen (164 incidents), Salmonella enterica subspecies enterica serovar Heidelberg (118 incidents) and Salmonella enterica subspecies enterica serovar Chester (113 incidents). The number of recorded Salmonella isolations over the period 1996 to 2006 varies considerably from year to year. The peak of 693 isolations was recorded in 1997, and the lowest, 108 incidents, in 2001. Of the total incidents recorded during the period of survey, 2410 (70.5 %) occurred in poultry and other birds, 641 (18.75 %) occurred in cattle, 255 (7.46) in pigs and 111 (3.24 %) in sheep. Despite the large number of serotypes isolated (183), 52% of incidents were due to only 6 serotypes in decreasing order of prevalence : S. Typhimurium, S. Dublin, S. Enteritidis, S. Muenchen, S. Heidelberg and S. Chester. Serovar Typhimurium was the most common serotype and was detected in all animal species sampled, with, 65 % (598) of the incidents occurring in poultry and 20 % (187) occurring in cattle. Of the total of 248 incidents of S. Dublin serotype, 95.6 % (237) of incidents occurred in cattle and of the 232 isolates of S. Enteritidis, 223 (96 %) originated from poultry. Serovar Choleraesuis was identified in 16 isolates from pigs. The following 4 serotypes were each recorded in more than 50 incidents : S. Hadar (102), S. Schwarzengrund (99), S. Mbandaka (94) and S. Sandiego (73). The trends of annual incidence of Salmonella infection in cattle, sheep, pigs, poultry and other birds during the 11-year period and the distribution of the main serotypes in individual species of animals from 1996-2006 are discussed

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“…in samples and sites of sample collection was previously reported on fresh and frozen chicken carcasses (p < 0.1). Indeed, the highest prevalence was found in samples from street vendors (50%), followed by supermarkets (48.9%) and butcheries (6.7%) [43].…”

Section: Discussionmentioning

confidence: 96%

Prevalence of Campylobacter among goats and retail goat meat in Congo

Mpalang

Boreux

Melin

et al. 2014

J Infect Dev Ctries

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Background: The prevalence of Campylobacter jejuni and Campylobacter coli was determined in goat and goat meat sold at retail outlets in Lubumbashi, Democratic Republic of Congo (DR Congo). Methodology: A total of 644 samples, including 177 goat meat, 86 goat stomachs, 139 ready to eat (RTE) goat skewers, and 242 goat faecal samples were examined for the presence of Campylobacter jejuni and Campylobacter coli using polymerase chain reaction. Results: Overall, Campylobacter spp. were found in 34.6% of the examined samples. C. jejuni was isolated in 10.1% and C. coli in 26.7% of samples. Only 2.2% of all samples were positive for both species. There was a significant association between the prevalence of C. coli and the type of sample (p < 0.05). The overall prevalence of Campylobacter in different sample groups was 41.2%, 37.2%, 23.7%, and 35.1% for goat meat, goat stomachs, RTE goat skewers, and goat faecal samples, respectively. There was no significant difference (p > 0.05) between the prevalence observed in the rainy season (16.7%) and the dry season (20.0%). Moreover, the overall prevalence of Campylobacter in slaughter sites, open-air markets, warehouses, and semi-open-air markets was 28.2%, 34.2%, 35.4%, and 42.9%, respectively. Statistically, there was no influence of the sample collection site on the frequency of isolation of Campylobacter (p > 0.05). Conclusion: This study shows that, considering the relatively high prevalence of this pathogen, live goat and goat meat are major sources of human and environmental contamination by Campylobacter spp. in Lubumbashi.

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Contamination of chicken carcasses in Gauteng, South Africa, by Salmonella, Listeria monocytogenes and Campylobacter

Cited by 96 publications

References 10 publications

Incidence of non-typhoidal Salmonella in poultry products in the North West Province, South Africa

Incidence of non-typhoidal Salmonella in poultry products in the North West Province, South Africa

Retrospective study on the incidence of Salmonella isolations in animals in South Africa, 1996 to 2006

Prevalence of Campylobacter among goats and retail goat meat in Congo

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