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https://www.readbyqxmd.com/read/28424675/safety-protective-immunity-and-diva-capability-of-a-rough-mutant-salmonella-pullorum-vaccine-candidate-in-broilers
#1
Rongxian Guo, Yang Jiao, Zhuoyang Li, Shanshan Zhu, Xiao Fei, Shizhong Geng, Zhiming Pan, Xiang Chen, Qiuchun Li, Xinan Jiao
Salmonella enterica subsp. enterica serovar Gallinarum biovar Pullorum (Salmonella Pullorum) is highly adapted to chickens causing an acute systemic disease that results in high mortality. Vaccination represents one approach for promoting animal health, food safety and reducing environmental persistence in Salmonella control. An important consideration is that Salmonella vaccination in poultry should not interfere with the salmonellosis monitoring program. This is the basis of the DIVA (Differentiation of Infected and Vaccinated Animals) program...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28414255/a-quantitative-assessment-of-the-risk-of-human-salmonellosis-arising-from-the-consumption-of-almonds-in-the-united-states-the-impact-of-preventive-treatment-levels
#2
Sofia M Santillana Farakos, Régis Pouillot, Rhoma Johnson, Judith Spungen, Insook Son, Nathan Anderson, Jane M Van Doren
The presence of Salmonella on almonds continues to result in product-related outbreaks and recalls in the United States. In this study, the impact of microbial reduction treatment levels (1 to 5 log CFU) on the risk of human salmonellosis from the consumption of almond kernels in the United States was evaluated. An exposure model, including major steps in almond processing, was used to estimate prevalence and levels of contamination of Salmonella on almonds at the point of consumption. A Salmonella dose-response model and consumption data for almonds in the United States were used to assess risk of illness per serving and per year, quantifying variability and uncertainty separately...
April 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28406162/mucosal-iga-and-ifn-%C3%AE-cd8-t-cell-immunity-are-important-in-the-efficacy-of-live-salmonella-enteria-serovar-choleraesuis-vaccines
#3
Liangquan Zhu, Xinxin Zhao, Qing Yin, Xianyong Liu, Xiang Chen, Chunjuan Huang, Xun Suo
Salmonellosis, a disease caused by non-typhoidal Salmonella strains which can be transmitted from swine to humans, is one of the leading public health problems around the world. Paratyphoid of swine is controlled by vaccinating swine with Salmonella enterica serovar Choleraesuis (S. Choleraesuis) live vaccine strain C500 in China. Although the vaccine has good prophylactic efficacy, the mechanism of immunogenicity is unclear. Using a C500-derived paratyphoid thermo-stable live vaccine (PTSL vaccine), we demonstrated that the PTSL vaccine induces strong primary and memory immune responses in piglets...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400019/molecular-characterization-and-antimicrobial-resistance-of-salmonella-enterica-from-swine-slaughtered-in-two-different-types-of-philippine-abattoir
#4
Alyzza Marie B Calayag, Phyllis Anne P Paclibare, Pauline Dianne M Santos, Corinne Aimee C Bautista, Windell L Rivera
Salmonella enterica is a well-known pathogen commonly acquired from the consumption of contaminated food. It has been estimated to affect millions of humans and cause hundreds of thousands of deaths per year globally. Pork, one of the most commonly consumed meats worldwide, has been identified as one of the main sources of human salmonellosis. In this study, we aimed to detect and characterize S. enterica from slaughtered swine and generate antimicrobial resistance profiles of select isolates. Tonsils and jejunum with mesenteric lymph nodes (MLN) were collected from a total of 240 swine from eight abattoirs (five accredited and three locally registered abattoirs) across Metro Manila...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28385135/an-outbreak-of-salmonellosis-associated-with-duck-prosciutto-at-a-northern-territory-restaurant
#5
Anthony Dk Draper, Claire N Morton, Joshua Ni Heath, Justin A Lim, Anninka I Schiek, Stephanie Davis, Vicki L Krause, Peter G Markey
In June 2015, an outbreak of salmonellosis occurred among people who had eaten at a restaurant in Darwin, Northern Territory over 2 consecutive nights. We conducted a retrospective cohort study of diners who ate at the restaurant on 19 and 20 June 2015. Diners were telephoned and a questionnaire recorded symptoms and menu items consumed. An outbreak case was defined as anyone with laboratory confirmed Salmonella Typhimurium PT9 (STm9) or a clinically compatible illness after eating at the restaurant. Environmental health officers inspected the premises and collected food samples...
March 31, 2017: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28385134/an-outbreak-of-salmonella-saintpaul-gastroenteritis-after-attending-a-school-camp-in-the-northern-territory-australia
#6
Anthony Dk Draper, Claire N Morton, Joshua Ni Heath, Justin A Lim, Peter G Markey
An outbreak of salmonellosis occurred following attendance at a school camp between 5 and 8 August 2014 in a remote area of the Northern Territory, Australia. We conducted a retrospective cohort study via telephone interviews, using a structured questionnaire that recorded symptoms and exposures to foods and activities during the camp. A case was anyone with laboratory confirmed Salmonella Saintpaul infection or a clinically compatible illness after attending the camp. Environmental health officers from the Environmental Health Branch undertook an investigation and collected water and environmental samples...
March 31, 2017: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28381209/supplemental-invasion-of-salmonella-from-the-perspective-of-salmonella-enterica-serovars-kentucky-and-typhimurium
#7
Kevin Howe, Sanaz Salehi, R Hartford Bailey, John P Brooks, Robert Wills, Mark L Lawrence, Attila Karsi
BACKGROUND: Critical to the development of Salmonellosis in humans is the interaction of the bacterium with the epithelial lining of the gastrointestinal tract. Traditional scientific reasoning held type III secretion system (T3SS) as the virulence factor responsible for bacterial invasion. In this study, field-isolated Salmonella enterica serovar Kentucky and a known human pathogen Salmonella enterica serovar Typhimurium were mutated and evaluated for the invasion of human colorectal adenocarcinoma epithelial cells...
April 5, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28368856/detection-of-salmonella-human-carriers-in-colombian-outbreak-areas
#8
Hernán Carvajal-Restrepo, Miryan Margot Sánchez-Jiménez, Sergio Diaz-Rodríguez, Nora Cardona-Castro
INTRODUCTION: Salmonellosis, a zoonotic and foodborne disease, is a public health problem in developing countries. With the aim of identifying human carriers of Salmonella, a survey was performed in five regions of Colombia with reported salmonellosis outbreaks. METHODOLOGY: The general population and cholecystectomy surgical patients were included in this study. Stool samples from 667 volunteers and gallbladder bile samples from 199 surgical patients were examined...
March 31, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28361830/synergism-in-dual-functionality-of-cryptdin-2-in-conjunction-with-antibiotics-against-salmonella
#9
Aman Preet Singh, Vijay Prabha, Praveen Rishi
BACKGROUND & OBJECTIVES: The emergence of multidrug-resistant Salmonella over the last two decades poses a major health risk. In this context, antimicrobial peptides have found a strategic place in the therapeutic armamentarium. Previously, we found that cryptdin-2 has the potential to augment the activity of conventional second- and third-generation anti-Salmonella antibiotics as evident by in vitro assays. In continuation to this, the present study was designed to evaluate the in vivo synergistic effects, if any, of cryptdin-2 in combination with ciprofloxacin and ceftriaxone against murine salmonellosis...
November 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28361036/a-salmonella-regulator-modulates-intestinal-colonization-and-use-of-phosphonoacetic-acid
#10
Johanna R Elfenbein, Leigh A Knodler, Allison R Schaeffer, Franziska Faber, Andreas J Bäumler, Helene L Andrews-Polymenis
Many microorganisms produce phosphonates, molecules characterized by stable carbon-phosphorus bonds that store phosphorus or act as antimicrobials. The role of phosphonates in the marine biosphere is well characterized but the role of these molecules in the intestine is poorly understood. Salmonella enterica uses its virulence factors to influence the host immune response to compete with the host and normal microflora for nutrients. Salmonella cannot produce phosphonates but encodes the enzymes to use them suggesting that it is exposed to phosphonates during its life cycle...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28355394/severe-sepsis-from-a-ciprofloxacin-resistant-salmonellosis-in-a-kidney-transplant-recipient
#11
Matheus Miranda Mendes, Moisés Carminatti, Hélady Sanders Pinheiro
INTRODUCTION: Salmonellosis is a relatively rare complication in kidney transplant recipients that cannot be clinically distinguished from other forms of enteritis. Among kidney transplant patients, it varies broadly in intensity, and is highly associated with extra-intestinal disease, bacteremia, and, in this case, a high mortality rate. CASE REPORT: Here we describe a clinical case of ciprofloxacin resistant salmonellosis in a kidney transplant patient. CONCLUSION: This case illustrates how immunosuppressed patients can be exposed to rare forms of infection, often clinically difficult to identify, and possibly with severe clinical courses and poor outcomes despite evidence-based empiric antibiotic therapy...
March 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/28340428/vaccination-as-a-control-strategy-against-salmonella-infection-in-pigs-a-systematic-review-and-meta-analysis-of-the-literature
#12
REVIEW
M L de la Cruz, I Conrado, A Nault, A Perez, L Dominguez, J Alvarez
Consumption or handling of improperly processed or cooked pork is considered one of the top sources for foodborne salmonellosis, a common cause of intestinal disease worldwide. Asymptomatic carrier pigs may contaminate pork at slaughtering; therefore, pre-harvest reduction of Salmonella load can contribute to reduce public health risk. Multiple studies have evaluated the impact of vaccination on controlling Salmonella in swine farms, but results are highly variable due to the heterogeneity in vaccines and vaccination protocols...
March 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28327524/reducing-risk-of-salmonellosis-through-egg-decontamination-processes
#13
REVIEW
Thilini Piushani Keerthirathne, Kirstin Ross, Howard Fallowfield, Harriet Whiley
Eggs have a high nutritional value and are an important ingredient in many food products. Worldwide foodborne illnesses, such as salmonellosis linked to the consumption of eggs and raw egg products, are a major public health concern. This review focuses on previous studies that have investigated the procedures for the production of microbiologically safe eggs. Studies exploring pasteurization and decontamination methods were investigated. Gamma irradiation, freeze drying, hot air, hot water, infra-red, atmospheric steam, microwave heating and radiofrequency heating are all different decontamination methods currently considered for the production of microbiologically safe eggs...
March 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28327127/effects-of-vitellaria-paradoxa-c-f-gaertn-aqueous-leaf-extract-administration-on-salmonella-typhimurium-infected-rats
#14
Siméon Pierre Chegaing Fodouop, Sedric Donald Tala, Lunga Paul Keilah, Norbert Kodjio, Mefokou Didiane Yemele, Armel Herve Kamdje Nwabo, Bridget Nji-Kah, Joseph Tchoumboue, Donatien Gatsing
BACKGROUND: The present study investigates the effects of Vitellaria paradoxa crude extract administration on Salmonella typhimurium infected Wistar rats. METHODS: Rats were infected by single dose oral administration of Salmonella typhimurium (1.5×10(8) CFU). Negative control groups were infected and treated orally with distilled water (vehicle), neutral control group were not infected, while the four test groups were treated up to 18 days with 55 mg/kg, 110 mg/kg, 220 mg/kg and 440 mg/kg body weight of aqueous extract of V...
March 21, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28306338/the-epidemiology-of-childhood-salmonella-infections-in-alberta-canada
#15
Kate E Faulder, Kimberley Simmonds, Joan L Robinson
OBJECTIVES: The objectives were to describe the incidence, demographics, laboratory findings, and suspected sources of childhood Salmonella infections in Alberta, Canada, with a focus on preventable cases. METHODS: Data from Notifiable Disease Reports for children with nontyphoidal salmonellosis (NTS) or typhoid/paratyphoid fever from 2007 through 2015 were analyzed. RESULTS: NTS was detected from 2285 children. Bacteremia was documented in 55 cases (2...
March 17, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28299287/low-prevalence-of-salmonella-enterica-in-cull-dairy-cattle-at-slaughter-in-northern-italy
#16
Silvia Bonardi, Ilaria Bruini, Rossella Magnani, Nicolò Cannistrà, Franco Brindani
In order to evaluate Salmonella carrier status of cull dairy cattle at slaughter, 125 animals were randomly selected during the period February-May 2016. Dairy cows were reared in 89 farms located in two regions of Northern Italy (Lombardy and Emilia-Romagna regions), where bovine milk is primarily used for Parmigiano-Reggiano cheese and Grana Padano cheese production. Samples were collected by swabbing a 400-cm(2) area of the brisket hide and by rectoanal mucosal swabs. They were tested following the reference ISO 6579 method and the isolates were serotyped following the Kauffmann-White-Le Minor scheme and genotyped by XbaI PFGE...
January 24, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28296192/inferring-source-attribution-from-a-multiyear-multisource-data-set-of-salmonella-in-minnesota
#17
C Ahlstrom, P Muellner, S E F Spencer, S Hong, A Saupe, A Rovira, C Hedberg, A Perez, U Muellner, J Alvarez
Salmonella enterica is a global health concern because of its widespread association with foodborne illness. Bayesian models have been developed to attribute the burden of human salmonellosis to specific sources with the ultimate objective of prioritizing intervention strategies. Important considerations of source attribution models include the evaluation of the quality of input data, assessment of whether attribution results logically reflect the data trends and identification of patterns within the data that might explain the detailed contribution of different sources to the disease burden...
March 13, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28291384/foodborne-salmonellosis-in-italy-characterization-of-salmonella-enterica-serovar-typhimurium-and-monophasic-variant-4-5-12-i-isolated-from-salami-and-human-patients
#18
Giuseppina Andreoli, Cristina Merla, Claudia Dalla Valle, Francesco Corpus, Marina Morganti, Mario D'incau, Silvia Colmegna, Piero Marone, Massimo Fabbi, Lisa Barco, Elena Carra
Salmonella enterica serovar Typhimurium (STm) and its monophasic variant 4,[5],12:i:- (VMSTm) have been responsible for an increased number of foodborne infections in humans in Europe in recent years. The aim of this study was to investigate the origin of three foodborne salmonellosis outbreaks that occurred in Pavia Province (Lombardy region, northern Italy) in 2010. Phenotypic and genetic characteristics of the STm and VMSTm isolates from patients and from food that were recovered in the framework of the three outbreaks were evaluated through serotyping, phage typing, antimicrobial susceptibility testing, pulsed-field gel electrophoresis (PFGE), and multiple-locus variable-number tandem repeat analysis (MLVA)...
March 14, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28283816/fowl-adenovirus-history-emergence-biology-and-development-of-a-vaccine-against-hydropericardium-syndrome
#19
REVIEW
M S Shah, A Ashraf, M I Khan, M Rahman, M Habib, M I Chughtai, J A Qureshi
The poultry industry has emerged as one of the largest and fastest growing public sectors in the developed and developing countries. Unfortunately, this industry is under a major threat from diseases that are viral (Newcastle disease, infectious bursal disease, influenza, hydropericardium syndrome), bacterial (colibacillosis, pasteurellosis, salmonellosis, mycoplasmosis), parasitic (coccidiosis, histoplasmosis) or nutritional (dyschondroplasia, osteoporosis). Among these diseases, hydropericardium syndrome (HPS) is one of the important emerging diseases occurring in the specific areas of the world where broilers (chickens) are reared under intensive conditions...
March 10, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28277220/multi-laboratory-validation-study-of-multilocus-variable-number-tandem-repeat-analysis-mlva-for-salmonella-enterica-serovar-enteritidis-2015
#20
Tansy Peters, Sophie Bertrand, Jonas T Björkman, Lin T Brandal, Derek J Brown, Tímea Erdõsi, Max Heck, Salha Ibrahem, Karin Johansson, Christian Kornschober, Saara M Kotila, Simon Le Hello, Taru Lienemann, Wesley Mattheus, Eva Møller Nielsen, Catherine Ragimbeau, Jillian Rumore, Ashley Sabol, Mia Torpdahl, Eija Trees, Alma Tuohy, Elizabeth de Pinna
Multilocus variable-number tandem repeat analysis (MLVA) is a rapid and reproducible typing method that is an important tool for investigation, as well as detection, of national and multinational outbreaks of a range of food-borne pathogens. Salmonella enterica serovar Enteritidis is the most common Salmonella serovar associated with human salmonellosis in the European Union/European Economic Area and North America. Fourteen laboratories from 13 countries in Europe and North America participated in a validation study for MLVA of S...
March 2, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
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