The Incidence of Salmonella, Campylobacter, and Yersinia enterocolitica in Swine Carcasses and the Slaughterhouse Environment

1989 ◽  
Vol 52 (9) ◽  
pp. 642-645 ◽  
Author(s):  
AKIER A. MAFU ◽  
R. HIGGINS ◽  
M. NADEAU ◽  
G. COUSINEAU
Keyword(s):  
Yersinia Enterocolitica ◽  
Degree Of Contamination ◽  
Salmonella Spp ◽  
Fecal Samples ◽  
Cold Room ◽  
Tank Water ◽  
Campylobacter Spp

This study was done to evaluate the degree of contamination of cooler-ready hog carcasses and the slaughterhouse environment by Salmonella spp., Campylobacter spp. and Yersinia enterocolitica. Samples from diaphragms and feces were collected from 200 market hogs in a Quebec slaughterhouse. Scalding-tank water and environmental swabs were also collected in the slaughterhouse. Specimens were tested for the presence of Salmonella spp., Y. enterocolitica, and Campylobacter spp. Salmonella spp. were isolated from 45 (10%) of 448 samples. The distribution of the isolates were slaughtering floor (8.9%), feces (80.2%), cold-room floor (4.4%), and diaphragms (6.7%). Campylobacter spp. were isolated from 247 (61.7%) of 400 specimens, and C. coli, C. jejuni, and C. laridis accounted for 97%, 2%, and 1% of isolates, respectively. Ninety-nine percent of fecal samples were positive for the presence of C. coli. Y. enterocolitica was found in 42 (9.3%) of the 448 specimens. Of these, 85.7%, 11.9%, and 2.4% of the isolates came from fecal, diaphragm, and cold-room floor samples, respectively. Neither Salmonella spp. nor Y. enterocolitica were isolated from scalding-tank water.

Prevalence of Salmonellae, Listeriae, and Yersiniae in the Slaughterhouse Environment and on Work Surfaces, Equipment, and Workers

1997 ◽  
Vol 60 (4) ◽  
pp. 367-371 ◽  
Author(s):  
MICHELA LUCIA SAMMARCO ◽  
GIANCARLO RIPABELLI ◽  
ADDOLORATO RUBERTO ◽  
GIORGIO IANNITTO ◽  
GUIDO MARIA GRASSO
Keyword(s):  
Listeria Monocytogenes ◽  
Yersinia Enterocolitica ◽  
Degree Of Contamination ◽  
Salmonella Spp ◽  
Hand Wash ◽  
Cold Room ◽  
Molise Region

In 1995 and 1996 a nine-month study was carried out in 11 pig abattoirs located in the Molise region (Italy) to evaluate the degree of contamination of- the slaughterhouse environment, work surfaces, equipment, and personnel by Salmonella spp., Listeria spp., and Yersinia spp. A total of 219 samples were taken over three replications including slaughtering floor and wall, hooks, work-tables, chopping blocks, knives, cleavers, dehairing devices, hands of personnel, clothing, hand-wash basins, and cold room handles, floor, wall, and hooks. Overall, six abattoirs (54.5%) had one or more positive sites, while only 14 of the 219 sites (6.4%) tested were positive for any of considered microorganisms. Salmonella spp. were isolated from 1 of 9 cleavers (11.1 %), 1 of 16 worktables (6.25%), and 1 of 18 slaughtering floors (5.6%). Yersinia enterocolitica was found on 3 slaughtering floors (16.7%) and on 2 worktables (12.5%). Yersinia kristensenii was detected on 2 slaughtering floor swabs (11.1 %). Listeria monocytogenes was isolated from 2 of 20 cold room floor swabs (13.3%) and from 1 of 14 hand-wash basins (7.1%). Other species of Listeria were detected on slaughtering wall and floor swabs and on chopping blocks. Our study indicates that slaughtering floors, cold room floors, and worktables are important sites in abattoirs that may possibly harbor pathogens like Salmonella spp., Yersinia enterocolitica, and Listeria monocytogenes, and that cleaning and sanitizing of the slaughterhouse environment and equipment need a greater emphasis.

scholarly journals Norovirus Is the Most Frequent Cause of Diarrhea in Hospitalized Patients in Monterrey, Mexico

Pathogens ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 672
Author(s):  
Néstor Casillas-Vega ◽  
Fernanda Flores-Rodríguez ◽  
Israel Sotelo-Coronado ◽  
Magda Elizabeth Vera-García ◽  
Aldo García-Heredia ◽  
...  
Keyword(s):  
Entamoeba Histolytica ◽  
Microscopic Observation ◽  
Hospitalized Patients ◽  
Salmonella Spp ◽  
Fecal Samples ◽  
Clostridioides Difficile ◽  
Shigella Spp ◽  
Level Hospital ◽  
Clinical Problems ◽  
Campylobacter Spp

Little information is available regarding the pathogens that cause diarrhea in hospitalized patients who also have various clinical problems. The purpose of this study was to determine the presence of pathogens in fecal samples of hospitalized patients all suffering diarrhea in addition to other problems in Mexico. Diarrheic stools from 240 patients were obtained in a third-level hospital in Monterrey, Mexico. PCR was used for the detection of Salmonella spp., Shigella spp., Campylobacter spp., Yersinia spp., Aeromonas spp., Clostridioides difficile, and norovirus GI and GII. The presence of trophozoites, cysts of protozoa, eggs, and/or helminth larvae was determined by microscopic observation. Of the 240 patients analyzed, 40.4% presented at least one of the pathogens analyzed. Norovirus was the pathogen most frequently found (28.6%), followed by bacteria (11.7%), and parasites (8.3%). The majority of co-infections were parasites + norovirus, and bacteria + norovirus. Norovirus was detected mainly in children aged 0 to 10 years (9/15, 60%). Patients aged 0–20 years did not present co-infections. Entamoeba coli and Entamoeba histolytica were the most common parasites, (8/240), and Salmonella was the most prevalent bacteria (10/240). This information can help design specific strategies useful for hospitalized people with a compromised status.

scholarly journals Saúde Animal, Biossegurança e Segurança dos alimentos

2018 ◽  
Vol 67 (Supplement) ◽  
pp. 131-135
Author(s):  
R. Potes ◽  
M.A. Laranjo ◽  
L. Elias
Keyword(s):  
Listeria Monocytogenes ◽  
Toxoplasma Gondii ◽  
Yersinia Enterocolitica ◽  
Trichinella Spiralis ◽  
Taenia Solium ◽  
Salmonella Spp ◽  
Campylobacter Spp

Alguns perigos que podem ameaçar a saúde dos consumidores de carne de porco e de produtos processados estão relacionados com a saúde animal ou com a manipulação da matéria-prima desde o abate dos animais, a transformação e até ao consumo. Entre os perigos químicos consideram-se as substâncias com efeitos anabólicos, os resíduos de substâncias medicamentosas e os contaminantes químicos, alguns com origem na produção animal ou produzidos durante o processamento. No que se refere aos perigos biológicos, podem encontrar-se alguns parasitas como Toxoplasma gondii, Trichinella spiralis e Taenia solium e também bactérias como Salmonella spp, Campylobacter spp., Yersinia enterocolitica, Listeria monocytogenes. As características físico-químicas da carne fresca facilitam o crescimento de diversos microrganismos, para além dos mencionados anteriormente, o que a torna altamente perecível. Os diferentes processos de transformação desta matéria-prima, não só permitem obter diferentes alimentos para o consumidor como constituem formas de aumentar a sua vida útil. Entre os processos de transformação incluem-se a secagem, a fermentação e a cura. Em Portugal há uma grande variedade de produtos cárneos tais como Chouriço, Paio, Presunto, Salsichão e Catalão, muitos dos quais são fabricados segundo as técnicas tradicionais das diferentes regiões de onde são originários. Alguns destes produtos têm sido estudados na Universidade de Évora. Apresentaremos alguns resultados que mostram o efeito favorável de vários processos de transformação no controlo de alguns dos perigos biológicos mencionados.

Occurrence of Zoonotic Bacteria in Retail Game Meat in Japan with Special Reference to Erysipelothrix

1997 ◽  
Vol 60 (3) ◽  
pp. 328-331 ◽  
Author(s):  
YOKO KANAI ◽  
HIDEKI HAYASHIDANI ◽  
KEN-ICHI KANEKO ◽  
MASUO OGAWA ◽  
TOSHIO TAKAHASHI ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Wild Boar ◽  
Yersinia Enterocolitica ◽  
The Other ◽  
Salmonella Spp ◽  
Serotype 1 ◽  
Meat Samples ◽  
Zoonotic Bacteria ◽  
Highly Virulent ◽  
Campylobacter Spp

From December 1993 to March 1994, a total of 93 wild boar and 30 deer meat samples were purchased from 13 retail shops and examined for the presence of species of Erysipelothrix, Yersinia, Listeria, Salmonella and Campylobacter. Erysipelothrix spp. were isolated from 41 wild boar and 15 deer samples. These isolates were identified as 13 serotypes. Serotypes 6 and 2 were the most predominant. Of 17 isolates examined, 14 isolates were highly virulent for mice. The bacteria of the same serotype were isolated repeatedly from the samples purchased in 4 of the shops. Yersinia enterocolitica was isolated from 36 wild boar and 10 deer samples; however, all isolates of Y. enterocolitica did not have pathogenic properties. Listeria monocytogenes was isolated from 5 wild boar samples. The isolates were identified as serotype 1/2c and 4b. Salmonella spp. were isolated from 2 wild boar samples; one isolate was identified as S. typhimurium and the other was untypable. Campylobacter spp. were not detected.

scholarly journals Prévalence de Salmonella, Listeria monocytogenes, Campylobacter spp., Yersinia enterocolitica et Cryptosporidium spp. dans du lait en vrac, des matières fécales de vaches et des effluents de fermes laitières à Trinidad

1996 ◽  
Vol 49 (4) ◽  
pp. 303-309
Author(s):  
A.A. Adesiyun ◽  
L.A. Webb ◽  
H. Romain ◽  
J.S. Kaminjolo
Keyword(s):  
Listeria Monocytogenes ◽  
Yersinia Enterocolitica ◽  
Salmonella Spp ◽  
Cryptosporidium Spp ◽  
Campylobacter Spp

La prévalence de Listeria, Salmonella, Campylobacter, Yersinia et Cryptosporidium dans du lait en vrac, les matières fécales des vaches laitières et des effluents à lait des fermes laitières de l'île de la Trinité, a été evaluée. Des 177 échantillons de lait en vrac testés, 3 (1,7 %), 3 (1,7 %) et 2 (1,2 %) étaient positifs respectivement pour Listeria monocytogenes, Salmonella spp. et Yersinia enterocolitica mais négatifs pour Campylobacter spp. et Cryptosporidium spp. Des 333 échantillons fécaux testés, L. monocytogenes, Campylobacter spp. et Cryptosporidium spp. étaient présents dans respectivement 11 (3,3 %), 19 (5,7 %) et 7 (2,1 %) des cas. Ces taux étaient significativement (P < 0,05; chi2) plus élevés, que le taux de détection (0 %) pour Yersinia spp. Salmonella spp. a été detectée dans 3 (0,9 %) échantillons fécaux. Des 168 échantillons prélevés des effluents à lait, Campylobacter spp. était présent dans 7 (4,2 %) échantillons alors que Salmonella spp. l'était dans seulement 1 (0,6 %) échantillon. Aucun échantillon n'était positif pour Yersinia spp. et Listeria spp. (différence significative, P<= 0,05; chi2). En conclusion, les cinq espèces entero-pathogènes testées étaient présentes dans les fermes laitières de l'île de la Trinité.

scholarly journals A longitudinal study on enteropathogenic infections of livestock in Trinidad

2001 ◽  
Vol 34 (1) ◽  
pp. 29-35 ◽  
Author(s):  
A.A. Adesiyun ◽  
J.S. Kaminjolo ◽  
M. Ngeleka ◽  
A. Mutani ◽  
G. Borde ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Longitudinal Study ◽  
Yersinia Enterocolitica ◽  
Animal Species ◽  
Gastrointestinal Nematodes ◽  
Salmonella Spp ◽  
Cryptosporidium Spp ◽  
Faecal Samples ◽  
Group A ◽  
Campylobacter Spp

A longitudinal study was conducted on selected livestock farms to determine the prevalence of enteropathogens in diarrhoeic and non-diarrhoeic animals. The enteropathogens assayed from faecal samples and rectal swabs were bacteria (Escherichia coli, Campylobacter spp. Salmonella spp. and Yersinia enterocolitica), parasites (coccidia, gastrointestinal nematodes and Cryptosporidium spp.) and viruses (group A rotavirus and parvovirus). The prevalence of the enteropathogens in various animal species was related to age and month of the year. Generally, younger animals presented a higher prevalence of infection by enteropathogens than older animals while most infections occurred between the months of January and April.

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