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Outbreak food epidemiology

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https://www.readbyqxmd.com/read/28647923/foodborne-illness-outbreak-investigation-in-a-high-profile-sports-club
#1
Kwendy Cavanagh, Travers Johnstone, Essi Huhtinen, Zeina Najjar, Peter Lorentzos, Craig Shadbolt, John Shields, Leena Gupta
A foodborne illness outbreak involving an elite sports team was investigated by a public health unit in Sydney, Australia. An epidemiological association was established between gastrointestinal illness and the consumption of food supplied by an external caterer, with a lamb meal most strongly associated with illness. Genetically identical Salmonella isolates were identified from clinical specimens, residual food items, and an environmental swab taken from the catering premises. The training schedule and other club operations were significantly affected by this outbreak...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28619007/whole-genome-sequencing-analyses-of-listeria-monocytogenes-that-persisted-in-a-milkshake-machine-for-a-year-and-caused-illnesses-in-washington-state
#2
Zhen Li, Ailyn Pérez-Osorio, Yu Wang, Kaye Eckmann, William A Glover, Marc W Allard, Eric W Brown, Yi Chen
BACKGROUND: In 2015, in addition to a United States multistate outbreak linked to contaminated ice cream, another outbreak linked to ice cream was reported in the Pacific Northwest of the United States. It was a hospital-acquired outbreak linked to milkshakes, made from contaminated ice cream mixes and milkshake maker, served to patients. Here we performed multiple analyses on isolates associated with this outbreak: pulsed-field gel electrophoresis (PFGE), whole genome single nucleotide polymorphism (SNP) analysis, species-specific core genome multilocus sequence typing (cgMLST), lineage-specific cgMLST and whole genome-specific MLST (wgsMLST)/outbreak-specific cgMLST...
June 15, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28602163/investigation-of-a-food-borne-outbreak-of-gastroenteritis-in-a-school-canteen-revealed-a-variant-of-sapovirus-genogroup-v-not-detected-by-standard-pcr-sollentuna-sweden-2016
#3
Maria-Pia Hergens, Joanna Nederby Öhd, Erik Alm, Helena H Askling, Sofia Helgesson, Mona Insulander, Nina Lagerqvist, Bo Svenungsson, Malin Tihane, Thomas Tolfvenstam, Per Follin
A food-borne outbreak of gastroenteritis with more than 650 suspected cases occurred in April 2016 in Sollentuna, Sweden. It originated in a school kitchen serving a total of 2,700 meals daily. Initial microbiological testing (for Campylobacter, Salmonella, Shigella, Yersinia, Giardia, Cryptosporidium, Entamoeba histolytica, adeno-, astro-, noro-, rota- and sapovirus) of stool samples from 15 symptomatic cases was negative, despite a clinical presentation suggestive of calicivirus. Analyses of the findings from both the Sollentuna municipality environmental team and a web-based questionnaire suggested that the source of the outbreak was the salad buffet served on 20 April, although no specific food item could be identified...
June 1, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28600312/colonization-of-vibrio-cholerae-on-the-soft-shelled-turtle
#4
Jiazheng Wang, Meiying Yan, He Gao, Xin Lu, Biao Kan
Vibrio cholerae is an important human pathogen and environmental microflora species that can both propagate in the human intestine and proliferate in zooplankton and aquatic organisms. Cholera is transmitted through food and water. In recent years, outbreaks caused by V. cholerae-contaminated soft-shelled turtles, mainly of toxigenic serogroup O139, have been frequently reported, posing a new foodborne disease public health problem. In this study, the colonization of toxigenic V. cholerae on the body surface and intestine of the soft-shelled turtle was explored...
June 9, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28597535/epidemiology-of-campylobacteriosis-in-denmark-2000-2015
#5
K G Kuhn, E M Nielsen, K Mølbak, S Ethelberg
Campylobacter is the most frequently occurring cause of bacterial gastroenteritis in Europe. Unlike other zoonotic diseases, European-wide incidences of Campylobacter infections have increased during the past decade, resulting in a significant disease burden. In Denmark, campylobacteriosis is notifiable by laboratory and a unique registration system of electronic transfer and storage of notified Campylobacter cases linked to the national person register of age, gender and geographical location allows collection of comprehensive case data...
June 9, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28582663/molecular-and-epidemiological-characterization-of-staphylococcal-foodborne-outbreak-of-staphylococcus-aureus-harboring-seg-sei-sem-sen-seo-and-selu-genes-without-production-of-classical-enterotoxins
#6
Kaoru Umeda, Hiromi Nakamura, Kaori Yamamoto, Nobuko Nishina, Kiyoshi Yasufuku, Yuki Hirai, Teruo Hirayama, Kaoru Goto, Atsushi Hase, Jun Ogasawara
Staphylococcal food poisoning is the result of consumption of food contaminated with staphylococcal enterotoxins (SEs) produced by Staphylococcus aureus. To date, 23 SEs and SE-like enterotoxins (SEls) have been described in the literature. They are divided into classical SEs (SEA-SEE) and new SE/SEls (SEG-SElX). Some have proved to be foodborne-inducible, but others remain unidentified. In May 2016, at an elderly group home in Osaka city, Japan, an outbreak from foodborne pathogens occurred among lunch party participants...
May 30, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28574206/genome-wide-analyses-of-listeria-monocytogenes-from-food-processing-plants-reveals-clonal-diversity-and-dates-the-emergence-of-persisting-sequence-types
#7
Gitte M Knudsen, Jesper Boye Nielsen, Rasmus L Marvig, Yin Ng, Peder Worning, Henrik Westh, Lone Gram
Whole genome sequencing is increasing used in epidemiology, e.g. for tracing outbreaks of food-borne diseases. This requires in-depth understanding of pathogen emergence, persistence, and genomic diversity along the food production chain including in food processing plants. We sequenced the genomes of 80 isolates of Listeria monocytogenes sampled from Danish food processing plants over a time-period of 20 years, and analyzed the sequences together with 10 public available reference genomes to advance our understanding of inter- and intra-plant genomic diversity of L...
June 2, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28550058/whole-genome-and-core-genome-multilocus-sequence-typing-and-single-nucleotide-polymorphism-analyses-of-listeria-monocytogenes-associated-with-an-outbreak-linked-to-cheese-united-states-2013
#8
Yi Chen, Yan Luo, Heather Carleton, Ruth Timme, David Melka, Tim Muruvanda, Charles Wang, George Kastanis, Lee S Katz, Lauren Turner, Angela Fritzinger, Terence Moore, Robert Stones, Joseph Blankenship, Monique Salter, Mickey Parish, Thomas S Hammack, Peter S Evans, Cheryl L Tarr, Marc W Allard, Errol A Strain, Eric W Brown
Epidemiological findings of a listeriosis outbreak in 2013 implicated Hispanic-style cheese produced by Company A, and pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS) were performed on clinical isolates and representative isolates collected from Company A cheese and environmental samples during the investigation. The results strengthened the evidence for cheese as the vehicle. Surveillance sampling and WGS three months later revealed that the equipment purchased by Company B from Company A yielded an environmental isolate highly similar to all outbreak isolates...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28527286/-possible-oral-transmission-of-chagas-disease-among-hydrocarbons-sector-workers-in-casanare-colombia-2014
#9
Liliana Patricia Zuleta-Dueñas, Ángela Johana López-Quiroga, Fernando Torres-Torres, Oneida Castañeda-Porras
INTRODUCTION: Trypanosoma cruzi, the etiological agent for Chagas disease, can be transmitted by oral intake of contaminated food or drinks. During epidemiological week 14 of 2014, two cases of acute Chagas disease were notified among hydrocarbons sector workers in Paz de Ariporo, Casanare. OBJECTIVE: To characterize the affected population, to establish control and prevention measures and to confirm the outbreak. MATERIALS AND METHODS: We conducted an outbreak investigation that included the following components: a) Search for symptomatic people compatible with Chagas disease according to the case definition for their referral to medical services; b) entomological survey (192/197 houses); c) sanitary inspection and microbiological analysis of food samples; and d) study of reservoirs...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28524037/-clinical-analysis-of-53-patients-with-clostridium-botulinum-food-poisoning
#10
Peng Zhang, Jianguang Dong, Lili Bai, Zewu Qiu
OBJECTIVE: To analyze the epidemiologic data of patients with Clostridium botulinum food poisoning, and to improve the understanding, diagnosis and treatment of food borne botulism. METHODS: A retrospective study was conducted. Fifty-three patients with Clostridium botulinum food poisoning admitted to Chinese PLA Center of Poisoning and Treatment from January 2009 to December 2016 were enrolled, and they were divided into mild, moderate, and severe groups according to the severity of disease...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28520707/using-molecular-characterization-to-support-investigations-of-aquatic-facility-associated-outbreaks-of-cryptosporidiosis-alabama-arizona-and-ohio-2016
#11
Michele C Hlavsa, Dawn M Roellig, Matthew H Seabolt, Amy M Kahler, Jennifer L Murphy, Taishayla K McKitt, Evelyn F Geeter, Ron Dawsey, Sherri L Davidson, Thuy N Kim, Theresa H Tucker, Sally Ann Iverson, Brenna Garrett, Nicole Fowle, Jennifer Collins, Gregory Epperson, Scott Zusy, Joli R Weiss, Ken Komatsu, Edwin Rodriguez, J Gage Patterson, Rebecca Sunenshine, Brandi Taylor, Katie Cibulskas, Lynn Denny, Keoni Omura, Boris Tsorin, Kathleen E Fullerton, Lihua Xiao
Cryptosporidiosis is a nationally notifiable gastrointestinal illness caused by parasitic protozoa of the genus Cryptosporidium, which can cause profuse, watery diarrhea that can last up to 2-3 weeks in immunocompetent patients and can lead to life-threatening wasting and malabsorption in immunocompromised patients. Fecal-oral transmission of Cryptosporidium oocysts, the parasite's infectious life stage, occurs via ingestion of contaminated recreational water, drinking water, or food, or following contact with infected persons or animals, particularly preweaned bovine calves (1)...
May 19, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28520482/foodborne-disease-outbreaks-in-correctional-institutions-united-states-1998-2014
#12
Mariel A Marlow, Ruth E Luna-Gierke, Patricia M Griffin, Antonio R Vieira
OBJECTIVES: To present the first update on the epidemiology of US foodborne correctional institution outbreaks in 20 years. METHODS: We analyzed data from the Centers for Disease Control and Prevention's Foodborne Disease Outbreak Surveillance System to describe correctional institution outbreaks from 1998 to 2014 and compare them with other foodborne outbreaks. RESULTS: Two hundred foodborne outbreaks in correctional institutions were reported, resulting in 20 625 illnesses, 204 hospitalizations, and 5 deaths...
July 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28494842/two-consecutive-large-outbreaks-of-salmonella-muenchen-linked-to-pig-farming-in-germany-2013-to-2014-is-something-missing-in-our-regulatory-framework
#13
Anika Schielke, Wolfgang Rabsch, Rita Prager, Sandra Simon, Angelika Fruth, Rüdiger Helling, Martin Schnabel, Claudia Siffczyk, Sina Wieczorek, Sabine Schroeder, Beate Ahrens, Hanna Oppermann, Stefan Pfeiffer, Sophie Susann Merbecks, Bettina Rosner, Christina Frank, Armin A Weiser, Petra Luber, Andreas Gilsdorf, Klaus Stark, Dirk Werber
In 2013, raw pork was the suspected vehicle of a large outbreak (n = 203 cases) of Salmonella Muenchen in the German federal state of Saxony. In 2014, we investigated an outbreak (n = 247 cases) caused by the same serovar affecting Saxony and three further federal states in the eastern part of Germany. Evidence from epidemiological, microbiological and trace-back investigations strongly implicated different raw pork products as outbreak vehicles. Trace-back analysis of S. Muenchen-contaminated raw pork sausages narrowed the possible source down to 54 pig farms, and S...
May 4, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28475781/2015-epidemic-of-severe-streptococcus-agalactiae-sequence-type-283-infections-in-singapore-associated-with-the-consumption-of-raw-freshwater-fish-a-detailed-analysis-of-clinical-epidemiological-and-bacterial-sequencing-data
#14
Shirin Kalimuddin, Swaine L Chen, Cindy T K Lim, Tse Hsien Koh, Thean Yen Tan, Michelle Kam, Christopher W Wong, Kurosh S Mehershahi, Man Ling Chau, Lee Ching Ng, Wen Ying Tang, Hishamuddin Badaruddin, Jeanette Teo, Anucha Apisarnthanarak, Nuntra Suwantarat, Margaret Ip, Matthew T G Holden, Li Yang Hsu, Timothy Barkham
Background: Streptococcus agalactiae (group B Streptococcus [GBS]) has not been described as a foodborne pathogen. However, in 2015, a large outbreak of severe invasive sequence type (ST) 283 GBS infections in adults epidemiologically linked to the consumption of raw freshwater fish occurred in Singapore. We attempted to determine the scale of the outbreak, define the clinical spectrum of disease, and link the outbreak to contaminated fish. Methods: Time-series analysis was performed on microbiology laboratory data...
May 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28469710/single-nucleotide-polymorphism-typing-analysis-for-molecular-subtyping-of-salmonella-tennessee-isolates-associated-with-the-2007-nationwide-peanut-butter-outbreak-in-the-united-states
#15
Hee-Jin Dong, Seongbeom Cho, David Boxrud, Shelly Rankin, Francis Downe, Judith Lovchik, Jim Gibson, Matt Erdman, A Mahdi Saeed
BACKGROUND: In 2007, a nationwide Salmonella Tennessee outbreak occurred via contaminated peanut butter. Here, we developed a single-nucleotide polymorphism (SNP)-typing method for S. Tennessee to determine the clonal subtypes of S. Tennessee that were associated with the peanut butter outbreak. METHODS AND RESULTS: One seventy-six S. Tennessee isolates from various sources, including humans, animals, food, and the environment, were analyzed by using the SNP technique...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28462733/epidemiology-and-whole-genome-sequencing-of-an-ongoing-point-source-salmonella-agona-outbreak-associated-with-sushi-consumption-in-western-sydney-australia-2015
#16
C K Thompson, Q Wang, S K Bag, N Franklin, C T Shadbolt, P Howard, E J Fearnley, H E Quinn, V Sintchenko, K G Hope
During May 2015, an increase in Salmonella Agona cases was reported from western Sydney, Australia. We examine the public health actions used to investigate and control this increase. A descriptive case-series investigation was conducted. Six outbreak cases were identified; all had consumed cooked tuna sushi rolls purchased within a western Sydney shopping complex. Onset of illness for outbreak cases occurred between 7 April and 24 May 2015. Salmonella was isolated from food samples collected from the implicated premise and a prohibition order issued...
May 2, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28442328/simple-quick-and-cost-efficient-a-universal-rt-pcr-and-sequencing-strategy-for-genomic-characterisation-of-foot-and-mouth-disease-viruses
#17
V Dill, M Beer, B Hoffmann
Foot-and-mouth disease (FMD) is a major contributor to poverty and food insecurity in Africa and Asia, and it is one of the biggest threats to agriculture in highly developed countries. As FMD is extremely contagious, strategies for its prevention, early detection, and the immediate characterisation of outbreak strains are of great importance. The generation of whole-genome sequences enables phylogenetic characterisation, the epidemiological tracing of virus transmission pathways and is supportive in disease control strategies...
April 23, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28405360/towards-an-integrated-food-safety-surveillance-system-a-simulation-study-to-explore-the-potential-of-combining-genomic-and-epidemiological-metadata
#18
A A Hill, M Crotta, B Wall, L Good, S J O'Brien, J Guitian
Foodborne infection is a result of exposure to complex, dynamic food systems. The efficiency of foodborne infection is driven by ongoing shifts in genetic machinery. Next-generation sequencing technologies can provide high-fidelity data about the genetics of a pathogen. However, food safety surveillance systems do not currently provide similar high-fidelity epidemiological metadata to associate with genetic data. As a consequence, it is rarely possible to transform genetic data into actionable knowledge that can be used to genuinely inform risk assessment or prevent outbreaks...
March 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28402712/investigation-of-a-staphylococcal-food-poisoning-outbreak-from-a-chantilly-cream-dessert-in-umbria-italy
#19
Laura Ercoli, Silvia Gallina, Yacine Nia, Frédéric Auvray, Sara Primavilla, Fabrizia Guidi, Benedetta Pierucci, Catia Graziotti, Lucia Decastelli, Stefania Scuota
On August 28, 2015, a staphylococcal food poisoning outbreak occurred in Umbria, Italy, affecting 24 of the 42 customers who had dinner at a local restaurant. About 3 h after ingesting a variety of foods, the customers manifested gastrointestinal symptoms. Within 24 h of notification from the hospital emergency department, Sanitary Inspectors of the local Public Health Unit performed an epidemiological investigation. A retrospective cohort study was conducted among the customers. Food and environmental samples were collected...
April 12, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28402185/giardiasis-outbreak-associated-with-asymptomatic-food-handlers-in-new-york-state-2015
#20
Mary Figgatt, Kimberly Mergen, Deborah Kimelstein, Danielle M Mahoney, Alexandra Newman, David Nicholas, Kristen Ricupero, Theresa Cafiero, Daniel Corry, Julius Ade, Philip Kurpiel, Susan Madison-Antenucci, Madhu Anand
Giardia duodenalis is a protozoan that causes a gastrointestinal illness called giardiasis. Giardiasis outbreaks in the United States are most commonly associated with waterborne transmission and are less commonly associated with food, person-to-person, and zoonotic transmission. During June to September 2015, an outbreak of 20 giardiasis cases occurred and were epidemiologically linked to a local grocery store chain on Long Island, New York. Further investigation revealed three asymptomatic food handlers were infected with G...
April 12, 2017: Journal of Food Protection
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