scholarly journals Outbreak of Fluoroquinolone-Resistant Campylobacter jejuni Infections Associated with Raw Milk Consumption from a Herdshare Dairy — Colorado, 2016

2018 ◽  
Vol 67 (5) ◽  
pp. 146-148 ◽  
Author(s):  
Alexis Burakoff ◽  
Kerri Brown ◽  
Joyce Knutsen ◽  
Christina Hopewell ◽  
Shannon Rowe ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Raw Milk ◽  
Milk Consumption

Dairy Products, Produce and Other Non-Meat Foods as Possible Sources of Campylobacter jejuni and Campylobacter coli Enteritis

1986 ◽  
Vol 49 (5) ◽  
pp. 347-351 ◽  
Author(s):  
NOREEN V. HARRIS ◽  
TERRI KIMBALL ◽  
NOEL S. WEISS ◽  
CHARLES NOLAN
Keyword(s):  
Relative Risk ◽  
Campylobacter Jejuni ◽  
Dairy Products ◽  
Puget Sound ◽  
Raw Milk ◽  
Campylobacter Coli ◽  
Milk Consumption ◽  
Group Health ◽  
R Factors

To determine the role of dairy products and produce in the occurence of Campylobacter jejuni and Campylobacter coli (CJC) enteritis, we analyzed dietary histories obtained from 218 persons with Campylobacter enteritis who were diagnosed by culture betwen April, 1982, and September, 1983. For comparison, similar histories were obtained from 526 persons without CJC enteritis. Both ill and well subjects were enrollees of the Group Health Cooperative of Puget Sound (GHC). Raw milk (relative risk (RR) = 4.6) and mushrooms (RR = 1.5) were the only non-meat foods consumed significantly more often by cases than by controls. Cases infected with strains carrying plasmid-mediated tetracyline resistance (R factors) were somewhat more likely (RR = 8.5) than those infected with other strains (RR = 2.5) to have acquired their infections from raw milk (P = 0.03). In this population, approximately 10% of the tetracycline-resistant CJC infections were attributable to raw milk consumption as compared to only 2% of the infections with tetracycline-sensitive strains.

Quantitative Risk Assessment of Verocytotoxin-Producing Escherichia coli O157 and Campylobacter jejuni Related to Consumption of Raw Milk in a Province in Northern Italy

2012 ◽  
Vol 75 (11) ◽  
pp. 2031-2038 ◽  
Author(s):  
F. GIACOMETTI ◽  
A. SERRAINO ◽  
P. BONILAURI ◽  
F. OSTANELLO ◽  
P. DAMINELLI ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Campylobacter Jejuni ◽  
Dose Response ◽  
National Level ◽  
Raw Milk ◽  
Storage Conditions ◽  
Northern Italy ◽  
Quantitative Risk Assessment ◽  
Milk Consumption ◽  
Age Group

A quantitative risk assessment was developed to describe the risk of campylobacteriosis and hemolytic uremic syndrome (HUS) linked to consumption of raw milk sold in vending machines in Northern Italy. Exposure assessment considered the microbiological status of dairy farms, expected milk contamination, storage conditions from bulk tank to home storage, microbial growth during storage, destruction experiments, consumption frequency of raw milk, age of consumers, serving size, and consumption preference. The differential risk between milk handled under regulation conditions (4°C throughout all phases) and the worst field handling conditions was considered. The probability of Campylobacter jejuni infection was modeled with a single-hit dose-response beta-Poisson model, whereas for HUS an exponential dose-response model was chosen and two probabilities were used to model the higher susceptibility of children younger than 5 years old. For every 10,000 to 20,000 consumers each year, the models predicted for the best and worst storage conditions, respectively, 2.12 and 1.14 campylobacteriosis cases and 0.02 and 0.09 HUS cases in the 0- to 5-year age group and 0.1 and 0.5 HUS cases in the >5-year age group. The expected pediatric HUS cases do not differ considerably from those reported in Italy by the Minister of Health. The model developed may be a useful tool for extending the assessment of the risk of campylobacteriosis and HUS due to raw milk consumption at the national level in Italy. Considering the epidemiological implications of this study, the risk of illness linked to raw milk consumption should not be ignored and could be reduced by the use of simple measures. Boiling milk before consumption and strict control of temperatures by farmers during raw milk distribution have significant effects on campylobacteriosis and HUS and are essential measures for risk management.

scholarly journals Gastrointestinal infections caused by consumption of raw drinking milk in England & Wales, 1992–2017

2019 ◽  
Vol 147 ◽  
Author(s):  
N. Adams ◽  
L. Byrne ◽  
J. Edge ◽  
A. Hoban ◽  
C. Jenkins ◽  
...  
Keyword(s):  
Public Health ◽  
Infectious Disease ◽  
Campylobacter Jejuni ◽  
Raw Milk ◽  
National Surveillance ◽  
Gastrointestinal Infections ◽  
Food Standards ◽  
The Uk ◽  
Drinking Milk ◽  
Intestinal Infectious Disease

Abstract Systematic, national surveillance of outbreaks of intestinal infectious disease has been undertaken by Public Health England (PHE) since 1992. Between 1992 and 2002, there were 19 outbreaks linked to raw drinking milk (RDM) or products made using raw milk, involving 229 people; 36 of these were hospitalised. There followed an eleven-year period (2003–2013) where no outbreaks linked to RDM were reported. However, since 2014 seven outbreaks of Escherichia coli O157:H7 (n = 3) or Campylobacter jejuni (n = 4) caused by contaminated RDM were investigated and reported. Between 2014 and 2017, there were 114 cases, five reported hospitalisations and one death. The data presented within this review indicated that the risk of RDM has increased since 2014. Despite the labelling requirements and recommendations that children should not consume RDM, almost a third of outbreak cases were children. In addition, there has been an increase in consumer popularity and in registered RDM producers in the UK. The Food Standards Agency (FSA) continue to provide advice on RDM to consumers and have recently made additional recommendations to enhance existing controls around registration and hygiene of RDM producers.

scholarly journals Outbreak of Yersinia pseudotuberculosis O:1 infection associated with raw milk consumption, Finland, spring 2014

2015 ◽  
Vol 20 (40) ◽  
Author(s):  
Triin Pärn ◽  
Saija Hallanvuo ◽  
Saara Salmenlinna ◽  
Annika Pihlajasaari ◽  
Seija Heikkinen ◽  
...  
Keyword(s):  
Health Risks ◽  
Yersinia Pseudotuberculosis ◽  
Erythema Nodosum ◽  
Public Awareness ◽  
Raw Milk ◽  
Milk Consumption ◽  
Disease Registry ◽  
Municipal Authority ◽  
Stool Samples ◽  
Household Members

In March 2014, a Yersinia pseudotuberculosis (YP) outbreak was detected by a municipal authority in southern Finland. We conducted epidemiological, microbiological and traceback investigations to identify the source. We defined a case as a person with YP infection notified to the National Infectious Disease Registry between February and April 2014, or their household member, with abdominal pain and fever ≥ 38 °C or erythema nodosum. Healthy household members were used as household-matched controls. We identified 43 cases and 50 controls. The illness was strongly associated with the consumption of raw milk from a single producer. The odds ratio of illness increased with the amount of raw milk consumed. Also previously healthy adults became infected by consuming raw milk. Identical YP strains were identified from cases’ stool samples, raw milk sampled from a case’s refrigerator and from the milk filter at the producer’s farm. The producer fulfilled the legal requirements for raw milk production and voluntarily recalled the raw milk and stopped its production. We advised consumers to heat the raw milk to 72 °C for 15 s. Current legislation for raw milk producers should be reviewed and public awareness of health risks linked to raw milk consumption should be increased.

Prevalence and Molecular Characterization of Microbial Contaminants in Raw Cow Milk of Tangail District in Bangladesh

2021 ◽  
Vol 17 ◽  
Author(s):  
Shahin Mahmud ◽  
Md. Firoz Ali ◽  
Md. Omar Faruque ◽  
Muhammad Wasim ◽  
Fatematuz Zuhura Evamoni ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Raw Milk ◽  
Health Impact ◽  
Cow Milk ◽  
Milk Consumption ◽  
Salmonella Spp ◽  
Mean Values ◽  
The Mean ◽  
Quality Of Milk

Objectives: The aim of this study is to evaluate the microbial quality and associated health Methodology: An intensive study was carried out from January¬ to October 2019 at the Tangail district of Bangladesh to assess bacterial contamination of raw milk. A total of 60 samples were examined by following the standard bacteriological methods and the health impact was evaluated with the help of a semi-structured-based questionnaire. Molecular characterization of isolated bacteria was carried out by PCR. Results: Results revealed the mean values of TVC and TCC in raw milk, udder, oil, and utensil samples were 7.6×106, 8.8×106, 4.6×106, and 1.3×106 cfu/ml and 3.7×105, 1.4×106, 4.4×105, and 8.9×104 cfu/ml, respectively. The yeast and mold in raw milk, udder, and oil were 1.5×103, 1.8×103, and 1.3×102cfu/ml, respectively, and the mean values of E. coli in the above-mentioned samples were 1.9×103, 1.8×104, 2.1×103, and 1.6×103cfu/ml, respectively. On the other hand, the mean values of Salmonella spp. in raw milk, udder, oil, and utensil samples were 2.4×102, 7.9×102, 1.5×102, and 1.1×102cfu/ml, respectively. Some selected isolates confirmed by molecular identification were tested for their sensitivity against some common antibiotics used in Bangladesh. Escherichia coli showed 70% resistance to Amoxicillin and 90% sensitivity to Ciprofloxacin whereas Salmonella spp. And Staphylococcus aureus showed 90% resistance to Ampicillin and both were 80% and 90% sensitive to Ciprofloxacin, respectively. Conclusion, Significance, and Impact of Study: Milk producers should be appropriately trained to monitor the overall hygienic conditions surrounding the production and handling of milk until it reaches the consumer. Frequent monitoring of the milk production facility, occasional testing of raw milk, and minimal use of antibiotics will ensure the quality of milk. Consumption of quality milk and avoidance of raw milk consumption will reduce the health risk of the consumers.

Evaluation of the Bacteriological Health Risk of 60-Day Aged Raw Milk Cheddar Cheese

1984 ◽  
Vol 47 (7) ◽  
pp. 530-531 ◽  
Author(s):  
MICHAEL H. BRODSKY
Keyword(s):  
Staphylococcus Aureus ◽  
Alkaline Phosphatase ◽  
Health Risk ◽  
Campylobacter Jejuni ◽  
Alkaline Phosphatase Activity ◽  
Geometric Mean ◽  
Cheddar Cheese ◽  
Raw Milk ◽  
Fecal Coliforms ◽  
Salmonella Spp

One hundred twenty-seven 60-d aged Cheddar cheese samples produced by 21 provincially inspected cheese plants were analyzed by 8 regional laboratories of the Ontario Ministry of Health. Coliforms were detected in 37 (31.2%) and fecal coliforms confirmed in 22 (18.3%) samples, with geometric mean counts per g of 92.5 and 79.3, respectively. Staphylococcus aureus was found in only two products at a level of >1000 per g. Salmonella spp. and Campylobacter jejuni were not isolated from any of the samples tested. Yersinia enterocolitica was isolated from one product; however, the isolate was bile esculin-and salicin-positive, and considered a non-pathogenic biotype. The pH of these aged Cheddars ranged between 4.98 and 5.50, with a mean of 5.26. Alkaline phosphatase activity was detected in 94 (79.7%) of the 118 samples tested. These results suggest that 60-d aged raw milk Cheddar cheese produced in Ontario does not pose a significant bacteriological health risk.

Methods for Recovery of Campylobacter jejuni from Foods

1982 ◽  
Vol 45 (14) ◽  
pp. 1332-1337 ◽  
Author(s):  
NORMAN J. STERN
Keyword(s):  
Campylobacter Jejuni ◽  
Gas Flow ◽  
Raw Milk ◽  
Growth Conditions ◽  
Food Samples ◽  
Human Infection ◽  
Animal Products ◽  
Enrichment Broth ◽  
Selective Media ◽  
Sensitivity And Selectivity

The triangular relationship between Campylobacter jejuni, foods and disease in humans has been well-documented. Many studies have revealed that C. jejuni causes at least as many cases of human gastroenteritis as does Salmonella sp. Foods are an important vehicle in human infection, and raw milk is most frequently implicated. Other animal products also serve as potential sources of infection. C. jejuni has been found on the carcasses of poultry and other domestic animals throughout the world. The organism is microaerophilic and various methods for establishing appropriate growth conditions, such as the Fortner principle, atmosphere replacement and adding of supplements to encourage growth of C. jejuni, are available. Methods developed for use in clinical laboratories lack the necessary sensitivity and selectivity, and therefore have limited use in detecting small numbers of C. jejuni in foods. In one enrichment method for detecting C. jejuni in foods, washings are filtered and centrifuged, the sediment is suspended in the enrichment broth and the suspension is incubated under a constant gas flow at reduced oxygen levels. Following incubation enrichment broth is filtered and plated onto selective media. In another recently developed method, food samples are directly added to an enrichment broth with antibiotics and incubated under a microaerobic atmosphere before selective plating. Butzler's, Skirrow's and Campy-BAP selective media use several antibiotics to which C. jejuni is resistant. The plates are supplemented with horse or sheep blood, depending upon the specific formulation. The optimum temperature for growth of C. jejuni, about 42°C, may also be used for selection. It is now possible to recover 0.1 to 1 cell of C. jejuni per 10 to 25 g of food sample from among 106 to 109 indigenous bacteria. After a characteristic colony is isolated, the key criteria for presumptive identification of C. jejuni by phase-contrast microscopy are darting, corkscrew motion and a comma to spiral shape.

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