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https://www.readbyqxmd.com/read/28812009/the-bacteriological-quality-safety-and-antibiogram-of-salmonella-isolates-from-fresh-meat-in-retail-shops-of-bahir-dar-city-ethiopia
#1
Melkamnesh Azage, Mulugeta Kibret
The habit of raw meat consumption in addition to the poor hygienic standards and lack of knowledge contribute to food-borne diseases outbreaks. The objective of this research was to assess the bacterial quality and safety of fresh meat from retail Bahir Dar City, Ethiopia. A total of 30 fresh meat samples were collected from butcher shops. Standard bacteriological methods were used to isolate and enumerate bacteria. Kirby-Bauer disk diffusion method was used for antimicrobial susceptibility testing of Salmonella isolates...
2017: International journal of food science
https://www.readbyqxmd.com/read/28808161/listeria-monocytogenes-has-both-a-bd-type-and-an-aa3-type-terminal-oxidase-which-allow-growth-in-different-oxygen-levels-and-both-are-important-in-infection
#2
David Corbett, Marie Goldrick, Vitor E Fernandes, Kelly Davidge, Robert K Poole, Peter W Andrew, Jennifer Cavet, Ian S Roberts
Listeria monocytogenes is a food borne pathogen responsible for a number of life-threatening infections of humans. During an infection it invades epithelial cells before spreading from the intestine to the cells of the liver and spleen. This requires an ability to adapt to varying oxygen levels. Here we demonstrate that L. monocytogenes has two terminal oxidases, a cytochrome bd-type (CydAB) and a cytochrome aa3 -type menaquinol oxidase (QoxAB) and that both are used for respiration under different oxygen tensions...
August 14, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28800730/genotypes-of-hepatitis-a-virus-in-turkey-first-report-and-clinical-profile-of-children-infected-with-sub-genotypes-ia-and-iiia
#3
Huseyin Yilmaz, Asiye Karakullukcu, Nuri Turan, Utku Y Cizmecigil, Aysun Yilmaz, Ayse A Ozkul, Ozge Aydin, Alper Gunduz, Mahmut Mete, Fadile Y Zeyrek, Taner T Kirazoglu, Juergen A Richt, Bekir Kocazeybek
BACKGROUND: Hepatitis A virus (HAV) is a food and water-borne virus causing clinical (mainly hepatitis) and subclinical disease in humans. It is important to characterize circulating strains of HAV in order to prevent HAV infections using efficacious vaccines. The aim of this study was the detection and characterization of the circulating strains of HAV in Turkey by performing serology, RT-PCR, sequencing and phylogenetic analysis. METHODS: In this study, 355 HAV suspected cases were analysed by ELISA for the presence of antibodies to HAV...
August 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28795907/synergy-of-a-combination-of-nisin-and-citric-acid-against-staphylococcus-aureus-and-listeria-monocytogenes
#4
Xingchen Zhao, Zhen Zhen, Xinyang Wang, Na Guo
Food-borne diseases caused by pathogens, such as Staphylococcus aureus and Listeria monocytogenes, have for a long time attracted intensive worldwide attention from scientific researchers, food industries, and food safety authorities. Nisin (NS) is the only bacteriocin used worldwide as a GRAS food preservative, while citric acid (CA) has an unrestricted use in foods since it has GRAS status. In this study, synergistic interactions of NS combined with CA against S. aureus and L. monocytogenes were studied by the checkerboard microdilution method, with fractional inhibitory concentration index values ranging from 0...
August 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28780153/the-catholic-taste-of-broad-tapeworms-multiple-routes-to-human-infection
#5
Andrea Waeschenbach, Jan Brabec, Tomáš Scholz, D Timothy J Littlewood, Roman Kuchta
Broad tapeworms (Cestoda: Diphyllobothriidea) are the principal agents of widespread food-borne cestodosis. Diphyllobothriosis and diplogonoporosis, caused by members of the genera Diphyllobothrium, Diplogonoporus and Adenocephalus, are the most common fish cestodoses with an estimated 20 million people infected worldwide, and has seen recent (re)emergences in Europe due to the increasing popularity of eating raw or undercooked fish. Sparganosis is a debilitating and potentially lethal disease caused by the larvae of the genus Spirometra, which occurs throughout much of the (sub)tropics and is caused by the consumption of raw snakes and frogs, and drinking water contaminated by infected copepods...
August 2, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28777819/infection-stage-adjusted-dose-of-beta-lactams-for-parsimonious-and-efficient-antibiotic-treatments-a-pasteurella-multocida-experimental-pneumonia-in-mice
#6
Maleck V Vasseur, Marlene Z Lacroix, Pierre-Louis Toutain, Alain Bousquet-Melou, Aude A Ferran
In this study, the impact of infection stage on clinically and microbiologically efficacious doses and on antibiotic consumption was assessed during a naturally evolving infectious disease, using an original mouse model of pulmonary infection produced by air-borne contamination. When Pasteurella multocida was administered as pathogenic agent to immunocompetent mice, 60% of the animals exhibited clinical symptoms of pneumonia 2 to 4 days after bacterial contamination of the lungs. Two beta-lactam antibiotics were evaluated: amoxicillin and cefquinome, a fourth generation cephalosporin developed for food animals...
2017: PloS One
https://www.readbyqxmd.com/read/28776775/targeted-metabolic-profiling-rapidly-differentiates-escherichia-coli-and-staphylococcus-aureus-at-species-and-strains-level
#7
Haorong Li, Jiangjiang Zhu
RATIONAL: Pathogenic food-borne bacteria have been associated with severe infectious disease in humans and animals worldwide. Rapid detection and screening of these foodborne pathogens are critical for our food safety. This study aimed at detecting Escherichia coli and Staphylococcus aureus, two important foodborne bacteria, from species and strains/serovar level using mass spectrometry (MS)-based targeted metabolic profiling approach. METHODS: Ten E. coli strains (8 out of 10 were foodborne outbreak isolates) and four S...
August 4, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28757042/occurrence-and-characterization-of-stx-and-or-eae-positive-escherichia-coli-isolated-from-wildlife-including-a-typical-epec-strain-from-a-wild-boar
#8
Carla Andrea Alonso, Azucena Mora, Dafne Díaz, Miguel Blanco, David González-Barrio, Francisco Ruiz-Fons, Carmen Simón, Jorge Blanco, Carmen Torres
Shiga toxin-producing E. coli (STEC) and enteropathogenic E. coli (EPEC) strains are food-borne pathogens associated with acute diarrhea. Haemolytic-uremic syndrome (HUS) is often a complication of STEC infection. In order to examine the occurrence, serotypes, virulence and antimicrobial-resistance profiles of STEC and EPEC in wildlife, 326 faecal E. coli strains from 304 clinically healthy animals were analyzed. For this approach stx1, stx2 and eae genes, as well as accessory virulence determinants (ehx, hlyA, saa, tia, bfp, subAB) were PCR-screened and sequenced...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28754237/treatment-of-larva-migrans-syndrome-with-long-term-administration-of-albendazole
#9
Amy Hombu, Ayako Yoshida, Taisei Kikuchi, Eiji Nagayasu, Mika Kuroki, Haruhiko Maruyama
BACKGROUND: Larva migrans syndrome is a food-borne parasitic disease in humans, caused by accidental ingestion of eggs or larvae of ascarid nematodes, namely, Toxocara canis, Toxocara cati, or Ascaris suum, the roundworms commonly found in the intestines of dogs, cats and pigs respectively. When a patient is diagnosed as having larva migrans syndrome, oral-administration of albendazole is recommended, however, the regimen remains controversial worldwide. In Japan, the duration of albendazole administration is longer than those of European and North American countries...
July 14, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28753671/self-reported-infections-during-international-travel-and-notifiable-infections-among-returning-international-travellers-sweden-2009-2013
#10
Viktor Dahl, Anders Wallensten
We studied food and water-borne diseases (FWDs), sexually transmitted diseases (STDs), vector-borne diseases (VBDs) and diseases vaccinated against in the Swedish childhood vaccination programme among Swedish international travellers, in order to identify countries associated with a high number of infections. We used the national database for notifiable infections to estimate the number of FWDs (campylobacteriosis, salmonellosis, giardiasis, shigellosis, EHEC, Entamoeba histolytica, yersinosis, hepatitis A, paratyphoid fever, typhoid fever, hepatitis E, listeriosis, cholera), STIs (chlamydia, gonorrhoea and acute hepatitis B), VBDs (dengue fever, malaria, West Nile fever, Japanese encephalitis and yellow fever) and diseases vaccinated against in the Swedish childhood vaccination programme (pertussis, measles, mumps, rubella, diphtheria) acquired abroad 2009-2013...
2017: PloS One
https://www.readbyqxmd.com/read/28750073/a-preliminary-study-to-estimate-contact-rates-between-free-roaming-domestic-dogs-using-novel-miniature-cameras
#11
Courtenay B Bombara, Salome Dürr, Gabriel E Machovsky-Capuska, Peter W Jones, Michael P Ward
Information on contacts between individuals within a population is crucial to inform disease control strategies, via parameterisation of disease spread models. In this study we investigated the use of dog-borne video cameras-in conjunction with global positioning systems (GPS) loggers-to both characterise dog-to-dog contacts and to estimate contact rates. We customized miniaturised video cameras, enclosed within 3D-printed plastic cases, and attached these to nylon dog collars. Using two 3400 mAh NCR lithium Li-ion batteries, cameras could record a maximum of 22 hr of continuous video footage...
2017: PloS One
https://www.readbyqxmd.com/read/28739413/production-of-recombinant-flagellin-to-develop-elisa-based-detection-of-salmonella-enteritidis
#12
Seyed Ali Mirhosseini, Abbas Ali Imani Fooladi, Jafar Amani, Hamid Sedighian
Food-borne diseases, caused by the pathogenic bacteria, are highly prevalent in the world. Salmonella is one of the most important bacterial genera responsible for this. Salmonella Enteritidis (SE) is one of the non-typhoid Salmonellae that can be transmitted to human from poultry products, water, and contaminated food. In recent years, new and rapid detection methods such as enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) have been developed. In this study, recombinant FliC (rFliC) was produced to be used as an antigen...
July 7, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28739367/a-hyperendemic-focus-of-taenia-solium-transmission-in-the-banke-district-of-nepal
#13
Keshav Sah, Ishab Poudel, Suyog Subedi, Dinesh Kumar Singh, Jo Cocker, Peetambar Kushwaha, Angela Colston, Meritxell Donadeu, Marshall W Lightowlers
Neurocysticercosis is a major cause of epilepsy in countries where Taenia solium is endemic and the parasite is a major cause of food-borne disease globally. Pigs are the natural intermediate host involved in transmission of the parasite. T. solium is known to be endemic in Nepal, however there is limited reliable data about the prevalence of the disease in Nepal. The aim of this study was to determine accurately the prevalence of porcine cysticercosis in slaughter age pigs in an area of Nepal where pigs are known to be free-roaming...
July 21, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28736911/observational-study-of-adherence-to-a-traditional-mediterranean-diet-sociocultural-characteristics-and-cardiovascular-disease-risk-factors-of-older-greek-australians-from-mediterranean-islands-medis-australia-study-protocol-and-rationale
#14
Antonia Thodis, Catherine Itsiopoulos, Antigone Kouris-Blazos, Laima Brazionis, Stefanos Tyrovolas, Evangelos Polychronopoulos, Demosthenes B Panagiotakos
AIM: To describe the study protocol of the MEDiterranean ISlands-Australia (MEDIS-Australia) Study modelled on the MEDIS Study conducted in Greece. The present study aims to explore adherence to the traditional Mediterranean diet pattern, determine enablers and barriers to adherence, explore the definition of Greek cuisine, and associations between adherence to the diet pattern and risk factors for cardiovascular disease (CVD) and metabolic syndrome in older Greek Australians originally from Greek islands and Cyprus...
July 24, 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28732870/synthesis-of-novel-biodegradable-antibacterial-grafted-xanthan-gum
#15
Mahmoud H Abu Elella, Riham R Mohamed, Eman Abd ElHafeez, Magdy W Sabaa
Xanthan gum (XG) is natural polysaccharides used in food industries as stabilizers and thickener agents. The problem is that some food products are found to be contaminated by pathogenic bacteria such as Escherichia coli (E. coli) and Staphyloccus aureus (S. aureus) that reduce their shelf life. This research aims to synthesize biodegradable antibacterial XG-grafted-poly(N-vinyl imidazole) PVI and the effect of reaction parameters were studied on grafting yield (G), grafting efficiency (GE), total conversion (TC) and homopolymer (H) %...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28722614/identification-of-risk-factors-associated-with-transmission-of-plague-disease-in-eastern-zambia
#16
Stanley S Nyirenda, Bernard M Hang'ombe, Robert Machangu, Jackson Mwanza, Bukheti S Kilonzo
Plague is a fatal, primarily rodent-flea-borne zoonotic disease caused by Yersinia pestis. The identification of risk factors of plague was investigated through questionnaire interview and conducting focus group discussion (FGD) in Sinda and Nyimba of eastern Zambia. A total of 104 questionnaires were administered to individual respondents and 20 groups consisting of 181 discussants, which comprised FGD team in this study. The study revealed that trapping, transportation, and preparation of rodents for food exposed the community to rodent and their fleas suggesting that plague may have occurred primarily by either flea bites or contact with infected wild rodents...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28715408/potential-risk-factors-associated-with-human-alveolar-echinococcosis-systematic-review-and-meta-analysis
#17
REVIEW
Franz J Conraths, Carolina Probst, Alessia Possenti, Belgees Boufana, Rosella Saulle, Giuseppe La Torre, Luca Busani, Adriano Casulli
BACKGROUND: Human alveolar echinococcosis (AE) is a severe zoonotic disease caused by the metacestode stage of Echinococcus multilocularis. AE is commonly associated with a long incubation period that may last for more than ten years. The objective of this systematic literature review was to identify and summarize the current knowledge on statistically relevant potential risk factors (PRFs) associated with AE in humans. METHODOLOGY/PRINCIPAL FINDINGS: Six bibliographic databases were searched, generating a total of 1,009 publications...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28714890/cardamom-cumin-and-dill-weed-essential-oils-chemical-compositions-antimicrobial-activities-and-mechanisms-of-action-against-campylobacter-spp
#18
Aysegul Mutlu-Ingok, Funda Karbancioglu-Guler
Natural antimicrobials as well as essential oils (EOs) have gained interest to inhibit pathogenic microorganisms and to control food borne diseases. Campylobacter spp. are one of the most common causative agents of gastroenteritis. In this study, cardamom, cumin, and dill weed EOs were evaluated for their antibacterial activities against Campylobacter jejuni and Campylobacter coli by using agar-well diffusion and broth microdilution methods, along with the mechanisms of antimicrobial action. Chemical compositions of EOs were also tested by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS)...
July 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28700978/aptamer-assisted-novel-technologies-for-detecting-bacterial-pathogens
#19
REVIEW
Naser Alizadeh, Mohammad Yousef Memar, Seyyed Reza Moaddab, Hossein Samadi Kafil
Nowadays, all people are at risk of infectious diseases that are mainly caused by bacteria causing infection. There is a permanent demand for an appropriate detection method that is affordable, practical, careful, rapid, sensitive, efficient and economical. Aptamers are single stranded DNA or RNA oligonucleotides, which can be recognized specifically and bind to their target molecules and also, be exploited in diagnostic applications. Recently, aptamer-based systems have offered great potentials in applications for the recognition of several important bacterial pathogens from clinical and food specimens...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28693637/the-effects-of-ambient-temperature-and-heatwaves-on-daily-campylobacter-cases-in-adelaide-australia-1990-2012
#20
A Milazzo, L C Giles, Y Zhang, A P Koehler, J E Hiller, P Bi
Campylobacter spp. is a commonly reported food-borne disease with major consequences for morbidity. In conjunction with predicted increases in temperature, proliferation in the survival of microorganisms in hotter environments is expected. This is likely to lead, in turn, to an increase in contamination of food and water and a rise in numbers of cases of infectious gastroenteritis. This study assessed the relationship of Campylobacter spp. with temperature and heatwaves, in Adelaide, South Australia. We estimated the effect of (i) maximum temperature and (ii) heatwaves on daily Campylobacter cases during the warm seasons (1 October to 31 March) from 1990 to 2012 using Poisson regression models...
September 2017: Epidemiology and Infection
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