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https://www.readbyqxmd.com/read/28541454/comprehensive-analysis-of-prevalence-epidemiological-and-clinical-characteristics-of-mono-infections-and-co-infections-in-diarrhoeal-diseases-in-children-in-tanzania
#1
Sabrina J Moyo, Øyvind Kommedal, Bjorn Blomberg, Kurt Hanevik, Marit Gjerde Tellevik, Samuel Y Maselle, Nina Langeland
The role of interactions between intestinal pathogens in diarrheal disease is uncertain. From August 2010 to July 2011, we collected stool samples from 723 children admitted with diarrhoea (cases) to three major hospitals in Dar es Salaam, Tanzania, and from 564 non-diarrheic children (controls). We analysed the samples for 17 pathogens and assessed interactions between co-infections in additive and multiplicative models. At least one pathogen was detected in 86.9% of the cases and 62.8%, of the controls. Prevalence of co-infections was 58...
May 24, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28538682/enteric-viruses-and-fecal-bacteria-indicators-to-assess-groundwater-quality-and-suitability-for-irrigation
#2
Osvalda De Giglio, Giuseppina Caggiano, Francesco Bagordo, Giovanna Barbuti, Silvia Brigida, Federica Lugoli, Tiziana Grassi, Giuseppina La Rosa, Luca Lucentini, Vito Felice Uricchio, Antonella De Donno, Maria Teresa Montagna
According to Italian Ministerial Decree No. 185 of 12 June 2003, water is considered suitable for irrigation if levels of fecal bacteria (i.e., Escherichia coli and Salmonella) are within certain parameters. The detection of other microorganisms is not required. The aim of this study is to determine the bacteriological quality of groundwater used for irrigation and the occurrence of enteric viruses (Norovirus, Enterovirus, Rotavirus, Hepatovirus A), and to compare the presence of viruses with the fecal bacteria indicators...
May 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28536072/characterization-of-astrovirus-associated-gastroenteritis-in-hospitalized-children-under-five-years-of-age
#3
Hassan Zaraket, Hadi Abou-El-Hassan, Khalil Kreidieh, Nadia Soudani, Zainab Ali, Moza Hammadi, Lina Reslan, Soha Ghanem, Farah Hajar, Adlette Inati, Mariam Rajab, Hassan Fakhouri, Bassam Ghanem, Ghassan Baasiri, Nada M Melhem, Ghassan Dbaibo
PURPOSE: The aim of this study was to determine the incidence and genetic diversity of astrovirus (AstV) detected in children hospitalized for gastroenteritis (GE). METHODS: A multi-center, hospital-based surveillance study was conducted across Lebanon to investigate the incidence of AstV among diarrheal hospitalizations. Viral RNA was extracted from stool samples collected between 2011 and 2013 from children, below the age of 5years, hospitalized for GE at six medical centers across Lebanon...
May 20, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28536027/live-attenuated-tetravalent-g1-g4-bovine-human-reassortant-rotavirus-vaccine-brv-tv-randomized-controlled-phase-iii-study-in-indian-infants
#4
Tarun Saluja, Sonali Palkar, Puneet Misra, Madhu Gupta, Potula Venugopal, Ashwani Kumar Sood, Ravi Mandyam Dhati, Avinash Shetty, Sangappa Malappa Dhaded, Sharad Agarkhedkar, Amlan Choudhury, Ramesh Kumar, Sundaram Balasubramanian, Sudhir Babji, Lopa Adhikary, Martin Dupuy, Sangeet Mohan Chadha, Forum Desai, Darshna Kukian, Badri Narayan Patnaik, Mandeep Singh Dhingra
BACKGROUND: Rotavirus remains the leading cause of diarrhoea among children <5years. We assessed immunogenic non-inferiority of a tetravalent bovine-human reassortant rotavirus vaccine (BRV-TV) over the licensed human-bovine pentavalent rotavirus vaccine RV5. METHODS: Phase III single-blind study (parents blinded) in healthy infants randomized (1:1) to receive three doses of BRV-TV or RV5 at 6-8, 10-12, and 14-16weeks of age. All concomitantly received a licensed diphtheria, tetanus, pertussis, hepatitis B, Haemophilus influenzae type b conjugate vaccine (DTwP-HepB-Hib) and oral polio vaccine (OPV)...
May 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28527973/molecular-analysis-of-group-a-rotaviruses-detected-in-hospitalized-children-from-rawalpindi-pakistan-during-2014
#5
Massab Umair, Bilal Haider Abbasi, Nadia Nisar, Muhammad Masroor Alam, Salmaan Sharif, Shahzad Shaukat, Muhammad Suleman Rana, Adnan Khurshid, Ghulam Mujtaba, Uzma Bashir Aamir, Syed Sohail Zahoor Zaidi
As part of strategy to control diarrheal diseases, World Health Organization (WHO) recommends to include rotavirus vaccines in national immunization programs. Sentinel surveillance networks have been established to monitor rotavirus disease burden and genotype distribution in both pre and post vaccine era in many countries. Unfortunately due to lack of proper surveillance programs, data on rotavirus disease burden and genotype distribution from Pakistan is scarce. We investigated 502 stool samples from children (<5years) hospitalized due to gastroenteritis in Rawalpindi, Pakistan during 2014 for the presence of group A rotavirus (RVA) and its genotypic diversity...
May 17, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28523920/expression-of-bovine-rotavirus-vp8-and-preparation-of-igy-antibodies-against-recombinant-vp8
#6
H S Kim, B Lee, S Y Han, Y T Jung
Group A rotavirus is the leading cause of acute gastroenteritis in cattle and swine. Although, vaccination against this virus is an effective strategy for prevention, additional strategy to control disease is necessary. Egg yolk immunoglobulin (IgY)-based passive immunization could be a better option in preventing this disease. Bovine rotavirus (BRV) is group A rotavirus and possesses a genome of 11 segments of double-stranded RNA. The outer layer of capsid is composed of two proteins (VP7 and VP4), which induce virus neutralizing antibodies...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28518031/clinical-and-molecular-characteristics-of-human-rotavirus-g8p-8-outbreak-strain-japan-2014
#7
Kenji Kondo, Takeshi Tsugawa, Mayumi Ono, Toshio Ohara, Shinsuke Fujibayashi, Yasuo Tahara, Noriaki Kubo, Shuji Nakata, Yoshihito Higashidate, Yoshiki Fujii, Kazuhiko Katayama, Yuko Yoto, Hiroyuki Tsutsumi
During March-July 2014, rotavirus G8P[8] emerged as the predominant cause of rotavirus gastroenteritis among children in Hokkaido Prefecture, Japan. Clinical characteristics were similar for infections caused by G8 and non-G8 strains. Sequence and phylogenetic analyses suggest the strains were generated by multiple reassortment events between DS-1-like P[8] strains and bovine strains from Asia.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28515290/a-point-mutation-in-the-rhesus-rotavirus-vp4-protein-generated-through-rotavirus-reverse-genetics-system-attenuates-the-murine-model-of-biliary-atresia
#8
Sujit K Mohanty, Bryan Donnelly, Phylicia Dupree, Inna Lobeck, Sarah Mowery, Jaroslaw Meller, Monica McNeal, Greg Tiao
Rotavirus infection is one of the most common causes of diarrheal illness in humans. In neonatal mice, rhesus rotavirus (RRV) can induce biliary atresia (BA), a disease resulting in inflammatory obstruction of the extra-hepatic biliary tract and intrahepatic bile ducts. We have previously shown that the amino acid, arginine (R) within the sequence "SRL" (amino acids 445-447) on the RRV VP4 protein is required for viral binding and entry into biliary epithelial cells. To determine if the single amino acid (R) influences the pathogenicity of the virus, we generated a recombinant virus with a single amino acid mutation at this site through a reverse genetics system...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28511732/outbreak-of-diarrhoea-among-participants-of-a-triathlon-and-a-duathlon-on-12-july-2015-in-utrecht-the-netherlands
#9
S Parkkali, R Joosten, E Fanoy, R Pijnacker, J VAN Beek, D Brandwagt, W VAN Pelt
On 12 July 2015, a triathlon competition with 900 participants took place in Utrecht, the Netherlands. An outbreak investigation was initiated after 56 participants reported health complaints. An online questionnaire was sent to 700 participants. Stool specimens from six participants and four water specimens were collected from the swimming location. A total of 239 participants completed the questionnaire (response rate: 34%), 73 (31%) of them met the case definition for acute gastrointestinal illness (AGI)...
May 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28510686/freeze-dried-rotavirus-vaccine-shows-promise
#10
M J Friedrich
No abstract text is available yet for this article.
May 16, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28504193/global-economic-evaluations-of-rotavirus-vaccines-a-systematic-review
#11
REVIEW
Surachai Kotirum, Naaon Vutipongsatorn, Khachen Kongpakwattana, Raymond Hutubessy, Nathorn Chaiyakunapruk
INTRODUCTION: World Health Organization (WHO) recommends Rotavirus vaccines to prevent and control rotavirus infections. Economic evaluations (EE) have been considered to support decision making of national policy. Summarizing global experience of the economic value of rotavirus vaccines is crucial in order to encourage global WHO recommendations for vaccine uptake. Therefore, a systematic review of economic evaluations of rotavirus vaccine was conducted. METHODS: We searched Medline, Embase, NHS EED, EconLit, CEA Registry, SciELO, LILACS, CABI-Global Health Database, Popline, World Bank - e-Library, and WHOLIS...
May 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28504192/correlates-of-protection-for-enteric-vaccines
#12
Jan Holmgren, Umesh D Parashar, Stanley Plotkin, Jacques Louis, Su-Peing Ng, Eric Desauziers, Valentina Picot, Mitra Saadatian-Elahi
An immunological Correlate of Protection (CoP) is an immune response that is statistically interrelated with protection. Identification of CoPs for enteric vaccines would help design studies to improve vaccine performance of licensed vaccines in low income settings, and would facilitate the testing of future vaccines in development that might be more affordable. CoPs are lacking today for most existing and investigational enteric vaccines. In order to share the latest information on CoPs for enteric vaccines and to discuss novel approaches to correlate mucosal immune responses in humans with protection, the Foundation Mérieux organized an international conference of experts where potential CoPs for vaccines were examined using case-studies for both bacterial and viral enteric pathogens...
May 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28500748/epidemiology-and-genetic-diversity-of-classic-human-astrovirus-among-hospitalized-children-with-acute-gastroenteritis-in-uruguay
#13
Lfl Tort, A Lizasoain, M Victoria, C Papalardo, S Castro, E Arreseigor, P Lopez, R Colina
Classic Human Astrovirus (Classic HAstV) are one of the most important causes of pediatric acute gastroenteritis (AGE), after rotaviruses and arguably caliciviruses. The aim of this study was to determine the molecular epidemiology of Classic HAstV from 175 clinical samples, being 153 stools and 22 vomits, collected from pediatric hospitalized patients with AGE in Salto city, Uruguay, from January 2011 to December 2012. Classic HAstV were detected and genotyped by using a qualitative Retro Transcription - Polimerase Chain Reaction (RT-PCR) directed to the Open Reading Frame-2 (ORF2) region C...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28494766/filmarray%C3%A2-gi-panel-performance-for-the-diagnosis-of-acute-gastroenteritis-or-hemorragic-diarrhea
#14
Antonio Piralla, Giovanna Lunghi, Gianluigi Ardissino, Alessia Girello, Marta Premoli, Erika Bava, Milena Arghittu, Maria Rosaria Colombo, Alessandra Cognetto, Patrizia Bono, Giulia Campanini, Piero Marone, Fausto Baldanti
BACKGROUND: Acute gastroenteritis is a common cause of morbidity and mortality in humans worldwide. The rapid and specific identification of infectious agents is crucial for correct patient management. However, diagnosis of acute gastroenteritis is usually performed with diagnostic panels that include only a few pathogens. In the present bicentric study, the diagnostic value of FilmArray™ GI panels was assessed in unformed stool samples of patients with acute gastroenteritis and in a series of samples collected from pediatric patients with heamorragic diarrhea...
May 12, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28490677/dietary-human-milk-oligosaccharides-but-not-prebiotic-oligosaccharides-increase-circulating-natural-killer-cell-and-mesenteric-lymph-node-memory-t-cell-populations-in-noninfected-and-rotavirus-infected-neonatal-piglets
#15
Sarah S Comstock, Min Li, Mei Wang, Marcia H Monaco, Theresa B Kuhlenschmidt, Mark S Kuhlenschmidt, Sharon M Donovan
Background: Human milk oligosaccharides (HMOs) have antimicrobial and immunomodulatory actions. It has previously been reported that these oligosaccharides contribute to the reduced duration of rotavirus-induced diarrhea in pigs.Objective: We measured the effects of HMOs and prebiotic oligosaccharides on immune cell populations from noninfected and rotavirus-infected pigs. We hypothesized that dietary HMOs would modulate systemic and gastrointestinal immunity.Methods: Colostrum-deprived newborn pigs were fed formula, formula with 4 g HMOs/L (2'-fucosyllactose, lacto-N-neotetraose, 6'-sialyllactose, 3'-sialyllactose, and free sialic acid), or formula with 3...
May 10, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28489400/antirotaviral-activity-of-bovine-and-ovine-dairy-byproducts
#16
José Antonio Parrón, Daniel Ripollés, María Dolores Pérez, Miguel Calvo, Jan Trige Rasmussen, Lourdes Sánchez
Rotaviral gastroenteritis is associated with significant morbidity in developed countries and a high rate of infant mortality in developing countries. Diverse studies have demonstrated that a wide range of milk-derived fractions exhibit antirotaviral activity. The present study shows the antirotaviral activity of some bovine and ovine dairy byproducts, buttermilk, butter serum, and milk fat globule membrane (MFGM), and evaluates the effect of cream washing and heat treatment on that activity. Furthermore, the rotavirus-neutralizing activity was evaluated for some MFGM proteins, such as xanthine oxidase and lactophorin...
May 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28488023/glucose-enhances-rotavirus-enterotoxin-induced-intestinal-chloride-secretion
#17
Liangjie Yin, Rejeesh Menon, Reshu Gupta, Lauren Vaught, Paul Okunieff, Sadasivan Vidyasagar
Rotavirus causes severe diarrhea in small children and is typically treated using glucose-containing oral rehydration solutions; however, glucose may have a detrimental impact on these patients, because it increases chloride secretion and presumably water loss. The rotavirus enterotoxin nonstructural protein 4 (NSP4) directly inhibits glucose-mediated sodium absorption. We examined the effects of NSP4 and glucose on sodium and chloride transport in mouse small intestines and Caco-2 cells. Mouse small intestines and Caco-2 cells were incubated with NSP4114-135 in the presence/absence of glucose...
May 10, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28486524/rotavirus-vaccine-will-have-an-impact-in-asia
#18
Carl D Kirkwood, A Duncan Steele
Carl Kirkwood and Duncan Steele discuss the evidence supporting rotavirus vaccine deployment in Asian countries.
May 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28484432/rice-bran-and-probiotics-alter-the-porcine-large-intestine-and-serum-metabolomes-for-protection-against-human-rotavirus-diarrhea
#19
Nora Jean Nealon, Lijuan Yuan, Xingdong Yang, Elizabeth P Ryan
Human rotavirus (HRV) is a leading cause of severe childhood diarrhea, and there is limited vaccine efficacy in the developing world. Neonatal gnotobiotic pigs consuming a prophylactic synbiotic combination of probiotics and rice bran (Pro+RB) did not exhibit HRV diarrhea after challenge. Multiple immune, gut barrier protective, and anti-diarrheal mechanisms contributed to the prophylactic efficacy of Pro+RB when compared to probiotics (Pro) alone. In order to understand the molecular signature associated with diarrheal protection by Pro+RB, a global non-targeted metabolomics approach was applied to investigate the large intestinal contents and serum of neonatal gnotobiotic pigs...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28483417/parenteral-protein-based-rotavirus-vaccine
#20
Miguel O'Ryan, Benjamin A Lopman
No abstract text is available yet for this article.
May 5, 2017: Lancet Infectious Diseases
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