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https://www.readbyqxmd.com/read/28722614/identification-of-risk-factors-associated-with-transmission-of-plague-disease-in-eastern-zambia
#1
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
#2
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 17, 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
#3
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
#4
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...
July 9, 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
#5
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...
July 11, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28690036/hev-and-transfusion-recipient-risk
#6
J Izopet, S Lhomme, S Chapuy-Regaud, J-M Mansuy, N Kamar, F Abravanel
HEV infections are mainly food- and water-borne but transfusion-transmission has occurred in both developing and developed countries. The infection is usually asymptomatic but it can lead to fulminant hepatitis in patients with underlying liver disease and pregnant women living in developing countries. It also causes chronic hepatitis E, with progressive fibrosis and cirrhosis, in approximately 60% of immunocompromised patients infected with HEV genotype 3. The risk of a transfusion-transmitted HEV infection is linked to the frequency of viremia in blood donors, the donor virus load and the volume of plasma in the final transfused blood component...
July 6, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28684267/current-vector-control-challenges-in-the-fight-against-malaria
#7
REVIEW
Giovanni Benelli, John C Beier
The effective and eco-friendly control of Anopheles vectors plays a key role in any malaria management program. Integrated Vector Management (IVM) suggests making use of the full range of vector control tools available. The strategies for IVM require novel technologies to control outdoor transmission of malaria. Despite the wide number of promising control tools tested against mosquitoes, current strategies for malaria vector control used in most African countries are not sufficient to achieve successful malaria control...
July 3, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28682780/intestinal-coccidian-parasites-as-an-underestimated-cause-of-travellers-diarrhoea-in-polish-immunocompetent-patients
#8
Matylda Kłudkowska, Łukasz Pielok, Krystyna Frąckowiak, Małgorzata Paul
Intestinal coccidian parasites are intracellular protozoa most frequently transmitted during food-borne and water-borne infections. This group of parasites is responsible for acute diarrhoeal illnesses especially among immunocompromised patients. However, they are more frequently detected in immunocompetent individuals including travellers, and they should also be considered as important etiologic factors of travellers' diarrhoea. We examined 221 immunocompetent patients hospitalized due to acute or chronic diarrhoea and other gastrointestinal symptoms after returning from international journeys to hot climates...
September 26, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28666890/protection-against-mosquito-vectors-aedes-aegypti-anopheles-stephensi-and-culex-quinquefasciatus-using-a-novel-insect-repellent-ethyl-anthranilate
#9
Johirul Islam, Kamaruz Zaman, Varun Tyagi, Sanjukta Duarah, Sunil Dhiman, Pronobesh Chattopadhyay
Growing concern on the application of synthetic mosquito repellents in the recent years has instigated the identification and development of better alternatives to control different mosquito-borne diseases. In view of above, present investigation evaluates the repellent activity of ethyl anthranilate (EA), a non-toxic, FDA approved volatile food additive against three known mosquito vectors namely, Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus under laboratory conditions following standard protocols...
June 27, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28662764/pulsenet-international-vision-for-the-implementation-of-whole-genome-sequencing-wgs-for-global-food-borne-disease-surveillance
#10
Celine Nadon, Ivo Van Walle, Peter Gerner-Smidt, Josefina Campos, Isabel Chinen, Jeniffer Concepcion-Acevedo, Brent Gilpin, Anthony M Smith, Kai Man Kam, Enrique Perez, Eija Trees, Kristy Kubota, Johanna Takkinen, Eva Møller Nielsen, Heather Carleton
PulseNet International is a global network dedicated to laboratory-based surveillance for food-borne diseases. The network comprises the national and regional laboratory networks of Africa, Asia Pacific, Canada, Europe, Latin America and the Caribbean, the Middle East, and the United States. The PulseNet International vision is the standardised use of whole genome sequencing (WGS) to identify and subtype food-borne bacterial pathogens worldwide, replacing traditional methods to strengthen preparedness and response, reduce global social and economic disease burden, and save lives...
June 8, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28662147/development-and-evaluation-of-an-up-converting-phosphor-technology-based-lateral-flow-assay-for-the-rapid-simultaneous-detection-of-vibrio-cholerae-serogroups-o1-and-o139
#11
Min Hao, Pingping Zhang, Baisheng Li, Xiao Liu, Yong Zhao, Hailing Tan, Chongyun Sun, Xiaochen Wang, Xinrui Wang, Haiyan Qiu, Duochun Wang, Baowei Diao, Huaiqi Jing, Ruifu Yang, Biao Kan, Lei Zhou
Vibrio cholerae serogroups O1 and O139 are etiological agents of cholera, a serious and acute diarrheal disease, and rapid detection of V. cholerae is a key method for preventing and controlling cholera epidemics. Here, a point of care testing (POCT) method called Vch-UPT-LF, which is an up-converting phosphor technology-based lateral flow (UPT-LF) assay with a dual-target detection mode, was developed to detect V. cholerae O1 and O139 simultaneously from one sample loading. Although applying an independent reaction pair made both detection results for the two Vch-UPT-LF detection channels more stable, the sensitivity slightly declined from 104 to 105 colony-forming units (CFU) mL-1 compared with that of the single-target assay, while the quantification ranges covering four orders of magnitude were maintained...
2017: PloS One
https://www.readbyqxmd.com/read/28661393/botulism-in-italy-1986-to-2015
#12
Fabrizio Anniballi, Bruna Auricchio, Alfonsina Fiore, Davide Lonati, Carlo Alessandro Locatelli, Florigio Lista, Silvia Fillo, Giuseppina Mandarino, Dario De Medici
Botulism is a rare but severe neuroparalytic disease caused by botulinum toxins. Because of its high potential impact on public health, botulism is a closely monitored communicable disease in Europe. In Italy, which has one of the highest incidence rates in Europe (0.03 cases per 100,000 population), botulism is monitored through a case-based passive surveillance system: the front-line physician who diagnoses a suspected case must notify the Local Health Units immediately, and the Ministry of Health's office within 12 hours...
June 15, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28655298/assessment-of-staphylococcus-aureus-along-milk-value-chain-and-its-public-health-importance-in-sebeta-central-oromia-ethiopia
#13
Yodit Ayele, Fanta Desissa Gutema, Bedaso Mamo Edao, Robel Girma, Takele Beyene Tufa, Tariku Jibat Beyene, Fanos Tadesse, Mesula Geloye, Ashenafi Feyisa Beyi
BACKGROUND: Staphylococcus aureus is one of the leading causes of gastroenteritis acquired from contaminated foods such as milk and milk products. However, such information is limited in Ethiopia. A cross-sectional study was conducted to assess the contamination of milk with S. aureus and knowledge, attitudes and practices (KAP) of actors along the milk value chain in Sebeta, Central Oromia, Ethiopia. A total of 291 samples collected from dairy farms, milk collection centers (MCCs) and processing plant were examined using standard microbiological techniques...
June 27, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28653459/collaborative-study-to-establish-world-health-organization-international-reference-reagents-for-dengue-virus-types-1-to-4-rna-for-use-in-nucleic-acid-testing
#14
Germán Añez, Evgeniya Volkova, Zhen Jiang, Daniel A R Heisey, Caren Chancey, Rafaelle C G Fares, Maria Rios
BACKGROUND: Dengue is the most important reemerging mosquito-borne viral disease worldwide. Caused by dengue virus (DENV), a member of the genus Flavivirus in the Flaviviridae family, dengue can be asymptomatic (approx. 80% of cases) or symptomatic, ranging from a flu-like illness known as dengue fever, to a life-threatening form called severe dengue. DENV is primarily transmitted from human to human through the bite of mosquitoes of the genus Aedes; however, it is also transmissible by transfusion of blood and blood components and by solid organ transplant...
June 26, 2017: Transfusion
https://www.readbyqxmd.com/read/28648636/contribution-of-flagella-and-motility-to-gut-colonisation-and-pathogenicity-of-salmonella-enteritidis-in-the-chicken
#15
Fernanda de Oliveira Barbosa, Oliveiro Caetano de Freitas Neto, Diego Felipe Alves Batista, Adriana Maria de Almeida, Marcela da Silva Rubio, Lucas Bocchini Rodrigues Alves, Rosemeire de Oliveira Vasconcelos, Paul Andrew Barrow, Angelo Berchieri Junior
Salmonella Enteritidis causes fowl paratyphoid in poultry and is frequently associated to outbreaks of food-borne diseases in humans. The role of flagella and flagella-mediated motility into host-pathogen interplay is not fully understood and requires further investigation. In this study, one-day-old chickens were challenged orally with a wild-type strain Salmonella Enteritidis, a non-motile but fully flagellated (SE ΔmotB) or non-flagellated (SE ΔfliC) strain to evaluate their ability to colonise the intestine and spread systemically and also of eliciting gross and histopathological changes...
June 7, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28646719/dna-aptamer-based-colorimetric-detection-platform-for-salmonella-enteritidis
#16
Ceren Bayraç, Füsun Eyidoğan, Hüseyin Avni Öktem
Food safety is a major issue to protect public health and a key challenge is to find detection methods for identification of hazards in food. Food borne infections affects millions of people each year and among pathogens, Salmonella Enteritidis is most widely found bacteria causing food borne diseases. Therefore, simple, rapid, and specific detection methods are needed for food safety. In this study, we demonstrated the selection of DNA aptamers with high affinity and specificity against S. Enteritidis via Cell Systematic Evolution of Ligands by Exponential Enrichment (Cell-SELEX) and development of sandwich type aptamer-based colorimetric platforms for its detection...
June 16, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28646670/a-metagenomic-assessment-of-viral-contamination-on-fresh-parsley-plants-irrigated-with-fecally-tainted-river-water
#17
X Fernandez-Cassi, N Timoneda, E Gonzales-Gustavson, J F Abril, S Bofill-Mas, R Girones
Microbial food-borne diseases are still frequently reported despite the implementation of microbial quality legislation to improve food safety. Among all the microbial agents, viruses are the most important causative agents of food-borne outbreaks. The development and application of a new generation of sequencing techniques to test for viral contaminants in fresh produce is an unexplored field that allows for the study of the viral populations that might be transmitted by the fecal-oral route through the consumption of contaminated food...
June 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28633491/optimization-of-inactivated-h5n9-highly-pathogenic-avian-influenza-vaccine-and-inactivated-salmonella-enterica-serovar-typhimurium-vaccine-with-antigen-dose-and-prime-boost-regimen-in-domestic-ducks
#18
Seong-Su Yuk, Eredene-Ochir To, Jung-Hoon Kwon, Jin-Yong Noh, Woo-Tack Hong, Jei-Hyun Jeong, Gyeong-Bin Gwon, Chang-Seon Song
Owing to the increase in the number of diseases affecting ducks and the demand for food safety by consumers, vaccination has become one of the factors that influence duck meat productivity. The highly pathogenic avian influenza (HPAI) virus is one of the most prevalent and causes one of the most lethal diseases in domestic ducks, and Salmonella enterica serovar Typhimurium is a food-borne pathogen persistent in the domestic duck population. To better understand the optimal usage of HPAI and S. enterica serovar Typhimurium vaccines, we aimed to determine antigen dose, oil and gel adjuvant usage with prime-boost regimen, and vaccination age, inducing the best immune response in ducks, without an effect on body weight gain...
June 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28629317/surface-hypothermia-predicts-murine-mortality-in-the-intragastric-vibrio-vulnificus-infection-model
#19
Hannah E Gavin, Karla J F Satchell
BACKGROUND: The Gram-negative bacterium Vibrio vulnificus can cause severe disease in humans who consume undercooked, contaminated seafood. To study food-borne V. vulnificus disease in the laboratory, mouse virulence studies predominantly use death as the primary experimental endpoint because behaviorally based moribund status does not consistently predict lethality. This study assessed ventral surface temperature (VST) and its association with mouse survival during V. vulnificus virulence studies as an efficacious, humane alternative...
June 19, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28627151/-assessment-of-an-algorithm-to-identify-paediatric-onset-celiac-disease-cases-through-administrative-healthcare-databases
#20
Gisella Pitter, Roberto Gnavi, Pierantonio Romor, Renzo Zanotti, Lorenzo Simonato, Cristina Canova
OBJECTIVES: to assess the role of four administrative healthcare databases (pathology reports, copayment exemptions, hospital discharge records, gluten-free food prescriptions) for the identification of possible paediatric cases of celiac disease. DESIGN: population-based observational study with record linkage of administrative healthcare databases. SETTING AND PARTICIPANT S: children born alive in the Friuli Venezia Giulia Region (Northern Italy) to resident mothers in the years 1989-2012, identified using the regional Medical Birth Register...
January 2017: Epidemiologia e Prevenzione
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