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Bacterial pathogens

Wed, 05/23/2018 - 17:00
Natasa Giallourou, Gregory L. Medlock, David T. Bolick, Pedro HQS Medeiros, Solanka E. Ledwaba, Glynis L. Kolling, Kenneth Tung, Patricia Guerry, Jonathan R. Swann, Richard L. Guerrant Campylobacter infections are among the leading bacterial causes of diarrhea and of ‘environmental enteropathy’ (EE) and growth failure worldwide. However, the lack of an inexpensive small animal model of enteric...
Wed, 05/23/2018 - 17:00
Dustin C. Ernst, Andrew J. Borchert, Diana M. Downs Microorganisms respond to a variety of metabolic perturbations repurposing or recruiting pathways to reroute metabolic flux and overcome the perturbation. Elimination of the 2-dehydropantoate 2-reductase, PanE, both reduces total coenzyme A (CoA) levels and causes a conditional HMP-P auxotrophy in Salmonella enterica. CoA or acetyl-CoA has no...
Tue, 05/22/2018 - 12:06
Capsules are surface layers of hydrated capsular polysaccharides (CPSs) produced by many bacteria. The human pathogen Salmonella enterica serovar Typhi produces “Vi antigen” CPS, which contributes to virulence. In a conserved strategy used by bacteria with diverse CPS structures, translocation of Vi antigen to the cell surface is driven by...
Tue, 05/22/2018 - 11:05
Staphylococcus aureus nasal carriage is a common condition affecting both healthy and immunocompromised populations and provides a reservoir for dissemination of potentially infectious strains by casual contact. The factors regulating the onset and duration of nasal S. aureus colonization are mostly unknown, and a human-relevant animal model is needed. Here, we screened 17 pig-tailed macaques (...
Tue, 05/22/2018 - 11:05
Campylobacter jejuni is a leading cause of bacterially derived gastroenteritis worldwide. Campylobacter is most commonly acquired through the consumption of undercooked poultry meat or through drinking contaminated water. Following ingestion, Campylobacter adheres to the intestinal epithelium and mucus layer, causing toxin-mediated inflammation and inhibition of fluid reabsorption. Currently, the...
Tue, 05/22/2018 - 11:05
Intrauterine infections lead to serious complications for mother and fetus, including preterm birth, maternal and fetal death, and neurological sequelae in the surviving offspring. Improving maternal and child heath is a global priority. Yet, the development of strategies to prevent and treat pregnancy-related diseases has lagged behind progress made in other medical fields. One of the challenges...
Mon, 05/21/2018 - 17:00
Jason D. Yang, Daniel Mott, Rujapak Sutiwisesak, Yu-Jung Lu, Fiona Raso, Britni Stowell, Greg Hunter Babunovic, Jinhee Lee, Steve M. Carpenter, Sing Sing Way, Sarah M. Fortune, Samuel M. Behar Containment of Mycobacterium tuberculosis (Mtb) infection requires T cell recognition of infected macrophages. Mtb has evolved to tolerate, evade, and subvert host immunity. Despite a vigorous and...
Sun, 05/20/2018 - 10:56
Publication date: 2 September 2018 , Volume 280 Author(s): Stefano Raimondi, Maria Rosaria Nappi, Tiziana Maria Sirangelo, Alan Leonardi, Alberto Amaretti, Alessandro Ulrici, Rudy Magnani, Chiara Montanari, Giulia Tabanelli, Fausto Gardini, Maddalena Rossi Ten lots of industrial raw sausages in modified atmosphere (CO2 30%, O2 70%), produced in the same plant over 7 ...
Sun, 05/20/2018 - 03:43
Publication date: July 2018 , Volume 109 Author(s): Jun-Won Kang, Sang-Soon Kim, Dong-Hyun Kang The object of this study was to elucidate the bactericidal mechanism of a 222 nm Krypton Chlorine (KrCl) excilamp compared with that of a 254 nm Low Pressure mercury (LP Hg) lamp. The KrCl excilamp had higher bactericidal capacity against Gram-positive pathogenic bacteria (Staphylococcus...
Sun, 05/20/2018 - 03:43
Publication date: July 2018 , Volume 109 Author(s): Madeshwari Ezhilan, Noel Nesakumar, K. Jayanth Babu, C.S. Srinandan, John Bosco Balaguru Rayappan Foodborne pathogens cause serious health issues and have a strong impact on the economy of the country. In this context, quality testing of royal delicious apple by detecting pathogen contamination using an electronic nose, which...
Sun, 05/20/2018 - 00:00
Toxins, Vol. 10, Pages 209: Acid Sphingomyelinase Promotes Cellular Internalization of Clostridium perfringens Iota-Toxin Toxins doi: 10.3390/toxins10050209 Authors: Masahiro Nagahama Masaya Takehara Kazuaki Miyamoto Kazumi Ishidoh Keiko Kobayashi Clostridium perfringens iota-toxin is a binary actin-ADP-ribosylating toxin composed of the enzymatic component Ia and receptor binding...
Sat, 05/19/2018 - 10:53
Publication date: 2 July 2018 , Volume 276 Author(s): Anna Roccato, Marzia Mancin, Lisa Barco, Veronica Cibin, Keti Antonello, Francesco Cocola, Antonia Ricci According to Regulation (EC) No 2017/1495, amending Regulation (EC) No 2073/2005, a slaughterhouse process hygiene criterion based on a limit of 103 CFU/g of Campylobacter for no more than 20 (for the years 2018 and 2019...
Sat, 05/19/2018 - 10:53
Publication date: 20 July 2018 , Volume 277 Author(s): Yasmeen S. Alzubeidi, Pathima Udompijitkul, Prabhat K. Talukdar, Mahfuzur R. Sarker Enterotoxigenic Clostridium perfringens, a leading foodborne pathogen can be cross-contaminated from food processing stainless steel (SS) surfaces to the finished food products. This is mostly due to the high resistance of C. perfringens spores...
Sat, 05/19/2018 - 10:53
Publication date: 20 July 2018 , Volume 277 Author(s): Alonzo A. Gabriel, Jeffrey M. Ostonal, Jannelle O. Cristobal, Gladess A. Pagal, John Vincent E. Armada This study determined the inactivation kinetic parameters of selected pathogens in heat, ultraviolet-C and combined heat-UV-C treated coconut liquid endosperm. Separate cocktails of Escherichia coli O157:H7, Salmonella enterica...
Sat, 05/19/2018 - 10:53
Publication date: 20 July 2018 , Volume 277 Author(s): Evangelia A. Zilelidou, Panagiotis N. Skandamis Like with all food microorganisms, many basic aspects of L. monocytogenes life are likely to be influenced by its interactions with bacteria living in close proximity. This pathogenic bacterium is a major concern both for the food industry and health organizations since it is ubiquitous...
Sat, 05/19/2018 - 10:53
Publication date: 20 July 2018 , Volume 277 Author(s): Angela Parry-Hanson Kunadu, Mark Holmes, Eric L. Miller, Andrew J. Grant Consumer perception of poor hygiene of fresh milk products is a major barrier to promotion of milk consumption as an intervention to alleviate the burden of malnutrition in Ghana. Fresh milk is retailed raw, boiled, or processed into unfermented cheese and...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Amin N. Olaimat, Murad A. Al-Holy, Mahmoud Abu Ghoush, Anas A. Al-Nabulsi, Richard A. Holley Hummus (chickpea dip) is a ready-to-eat product which has been implicated in several foodborne outbreaks and food recalls. This study aimed to screen the antimicrobial activity of allyl isothiocyanate (AITC) against 5 strains of each of...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Federica Cardinali, Vesna Milanović, Andrea Osimani, Lucia Aquilanti, Manuela Taccari, Cristiana Garofalo, Serena Polverigiani, Francesca Clementi, Elena Franciosi, Kieran Tuohy, M. Lucia Mercuri, M. Serena Altissimi, M. Naceur Haouet The present study promotes the valorization of Fabriano-like fermented...
Sat, 05/19/2018 - 10:53
Publication date: 20 August 2018 , Volume 279 Author(s): Gianna Palmieri, Marco Balestrieri, Federico Capuano, Yolande T.R. Proroga, Francesco Pomilio, Patrizia Centorame, Alessia Riccio, Raffaele Marrone, Aniello Anastasio Antimicrobial peptides have received great attention for their potential benefits to extend the shelf-life of food-products. Innate defense regulator...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Matthew Aijuka, Araceli E. Santiago, Jorge A. Girón, James P. Nataro, Elna M. Buys Diarrheagenic E. coli (DEC) has been implicated in foodborne outbreaks worldwide and have been associated with childhood stunting in the absence of diarrhoea. Infection is extraordinarily common, but the routes of transmission have not been...
Sat, 05/19/2018 - 10:53
Publication date: 20 August 2018 , Volume 279 Author(s): Corinne Audemard, Howard I. Kator, Kimberly S. Reece High salinity relay of Eastern oysters (Crassostrea virginica) was evaluated as a post-harvest processing (PHP) method for reducing Vibrio vulnificus. This approach relies on the exposure of oysters to natural high salinity waters and preserves a live product compared to...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Tareq M. Osaili, Anas A. Al-Nabulsi, Taqwa F. Aljaafreh Tahini halva is a traditional sweet product that is consumed with bread in different countries. It is a low water activity (aw) product basically made by mixing and cooking tahini, sugar, citric acid and Saponaria officinalis root extract together. Tahini halva maybe...
Sat, 05/19/2018 - 10:53
Publication date: 20 August 2018 , Volume 279 Author(s): Martin Wagner, Panos Skandamis, Franz Allerberger, Dagmar Schoder, Caroline Lassnig, Mathias Müller, Kathrin Rychli A cluster of 34 human cases of listeriosis was traced to consumption of contaminated quargel cheese, a sour milk specialty sold in Austria, Germany and Czech Republic. Here, we try to assess how many portions...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Mohammad Aminul Islam, Subarna Roy, Ashikun Nabi, Sultana Solaiman, Mahdia Rahman, Mohsina Huq, Nurul Amin Siddiquee, Niyaz Ahmed The main objective of the study was to assess the microbiological quality of milk at different stages of the dairy value chain from farm to the factory in Bangladesh. A total of 438 raw milk...
Sat, 05/19/2018 - 10:53
Publication date: 2 September 2018 , Volume 280 Author(s): David Ortega-Paredes, Pedro Barba, Santiago Mena-López, Nathaly Espinel, Jeannete Zurita Dissemination of Extended spectrum β-lactamases (ESBL) Enterobacteriaceae is a major medical threat. Vegetables and fruits, which are usually consumed raw, are a very suitable pathway for the spread of these bacteria from farm-to-fork....
Sat, 05/19/2018 - 10:53
Publication date: 2 September 2018 , Volume 280 Author(s): Xuetong Fan, Joshua B. Gurtler, Kimberly J.B. Sokorai A study was conducted to evaluate the effects of post-treatment rinsing with water on the inactivation efficacy of acid treatments against Salmonella inoculated onto stem scar areas of two types of tomatoes. In addition, impact on fruit quality was investigated during 21 days...
Sat, 05/19/2018 - 10:53
Publication date: 2 September 2018 , Volume 280 Author(s): Dai Kuang, Jianmin Zhang, Xuebin Xu, Weimin Shi, Sheng Chen, Xiaowei Yang, Xudong Su, Xianming Shi, Jianghong Meng Disease caused by nontyphoidal serotypes of Salmonella enterica is the leading cause of foodborne illness worldwide. Many serotypes have also developed resistance to antimicrobials commonly used for the...
Sat, 05/19/2018 - 10:53
Publication date: 2 September 2018 , Volume 280 Author(s): Piumi De Abrew Abeysundara, Nitin Dhowlaghar, Ramakrishna Nannapaneni, Mark W. Schilling, Barakat Mahmoud, Chander S. Sharma, Din-Pow Ma Salmonella enterica is responsible for the highest number of foodborne disease outbreaks pertaining to cantaloupe industry. The objective of this study was to examine the growth and...
Fri, 05/18/2018 - 04:54
Publication date: October 2018 , Volume 92 Author(s): Sang-Hyun Park, Jun-Won Kang, Dong-Hyun Kang This study was conducted to evaluate the antimicrobial effect of the combined treatment of UV-C radiation (UVC) and chlorine dioxide (ClO2) gas against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on spinach leaves and tomato surfaces and to clarify the...
Fri, 05/18/2018 - 01:13
Yann Sévellec, Marie-Léone Vignaud, Sophie A. Granier, Renaud Lailler, Carole Feurer, Simon Le Hello, Michel-Yves Mistou, Sabrina Cadel-Six
Thu, 05/17/2018 - 20:00
ABSTRACTThis study evaluated the preventive effect of the spontaneous oxidation of β-carotene (OxC-beta) in broiler chickens with necrotic enteritis by Clostridium perfringens taking into consideration various parameters including clinical signs, body weight, intestinal lesion severity, and bacterial enumeration. The mean body weight of the OxC-beta treatment groups increased significantly (P...
Thu, 05/17/2018 - 20:00
ABSTRACTSalmonella enterica serovar Oranienburg (SO) was linked to a human salmonellosis outbreak in the Midwest in 2015 and 2016 from consumption of eggs. However, unlike Salmonella enterica serovar Enteritidis (SE), little is known regarding the potential of SO to colonize in laying hens and contaminate eggs. We used in vivo and in vitro models to evaluate tissue colonization and survival...
Thu, 05/17/2018 - 11:05
In recent years, global warming has led to a growing number of Vibrio cholerae infections in bathing water users in regions formerly unaffected by this pathogen. It is therefore of high importance to monitor V. cholerae in aquatic environments and to elucidate the main factors governing its prevalence and abundance. For this purpose, rapid and standardizable methods that can be performed by...
Thu, 05/17/2018 - 07:46
Publication date: Available online 16 May 2018 Author(s): S.M. Raabis, T.L. Ollivett, M.E. Cook, J.M. Sand, S.M. McGuirk The primary objective of this randomized controlled trial was to determine whether anti-IL-10 egg yolk antibodies fed upon arrival to a calf ranch would lower the prevalence of Cryptosporidium parvum shedding in naturally challenged preweaned dairy calves. The...
Thu, 05/17/2018 - 07:46
Publication date: Available online 16 May 2018 Author(s): Yasser S. Mahmmod, Ilka Christine Klaas, Line Svennesen, Karl Pedersen, Hanne Ingmer The role of non-aureus staphylococci (NAS) in the risk of acquisition of intramammary infections with Staphylococcus aureus is vague and still under debate. The objectives of this study were to (1) investigate the distribution patterns of...
Thu, 05/17/2018 - 01:17
Egle Kudirkiene, Linda A. Andoh, Shahana Ahmed, Ana Herrero-Fresno, Anders Dalsgaard, Kwasi Obiri-Danso, John E. Olsen
Thu, 05/17/2018 - 01:17
Mohamed Elhadidy, William G. Miller, Hector Arguello, Avelino Álvarez-Ordóñez, Alexandra Duarte, Katelijne Dierick, Nadine Botteldoorn
Wed, 05/16/2018 - 18:52
Publication date: Available online 16 May 2018 Author(s): Steffen Porwollik, Ken Genovese, Weiping Chu, Guy H. Loneragan, Tom Edrington, Michael McClelland Feedlot cattle often contain Salmonella. The number of bacteria that initiate colonization of different cattle organs and the bacterial migration within these large animals are poorly understood. To investigate these questions...
Wed, 05/16/2018 - 17:00
Tilen Koklic, Štefan Pintarič, Irena Zdovc, Majda Golob, Polona Umek, Alma Mehle, Martin Dobeic, Janez Štrancar High economic burden is associated with foodborne illnesses. Different disinfection methods are therefore employed in food processing industry; such as use of ultraviolet light or usage of surfaces with copper-containing alloys. However, all the disinfection methods currently in use...
Wed, 05/16/2018 - 09:38
Publication date: October 2018 Source:LWT, Volume 96 Author(s): Alicia Paz, Sabrina da Silva Sabo, Marisol Vallejo, Emilio Marguet, Ricardo Pinheiro de Souza Oliveira, José Manuel Domínguez This study evaluates the use of hemicellulosic hydrolyzates, derived from brewer's spent grain (BSG), as a means of generating bacteriocins. The producer strains, Lactococcus lactis Tw11 and...
Wed, 05/16/2018 - 01:15
Yong Zhang, Yan Liu, Jiazhang Qiu, Zhao-Qing Luo, Xuming Deng
Wed, 05/16/2018 - 01:15
Changyan Xiong, Xuejiao Li, Juanli Liu, Xin Zhao, Shungao Xu, Xinxiang Huang
Tue, 05/15/2018 - 11:59
Publication date: Available online 9 May 2018 Source:Microbial Risk Analysis Author(s): E Tirloni, S Stella, L.V. de Knegt, G Gandolfi, C Bernardi, M.J. Nauta A Quantitative Microbial Risk Assessment (QMRA) was performed to estimate the expected number of listeriosis cases due to the consumption, on the last day of shelf life, of 20 000 servings of multi-ingredient sandwiches...
Tue, 05/15/2018 - 09:38
Publication date: October 2018 Source:LWT, Volume 96 Author(s): Taskeen Niaz, Saima Shabbir, Tayyaba Noor, Abdur Rahman, Habib Bokhari, Muhammad Imran The scientific and industrial interest in antimicrobial nano-carriers has significantly increased in recent years due to post-processing contamination. Liposomes are considered as promising food-grade carrier systems for bioactive-...
Tue, 05/15/2018 - 00:00
Toxins, Vol. 10, Pages 200: High Production of LukMF’ in Staphylococcus aureus Field Strains Is Associated with Clinical Bovine Mastitis Toxins doi: 10.3390/toxins10050200 Authors: Jurriaan Hoekstra Victor Rutten Laura Sommeling Tine van Werven Mirlin Spaninks Birgitta Duim Lindert Benedictus Gerrit Koop Staphylococcus aureus, a major cause of bovine mastitis, produces a...

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