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Infection surveillance

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https://www.readbyqxmd.com/read/28934459/mild-respiratory-illness-among-young-children-caused-by-highly-pathogenic-avian-influenza-a-h5n1-virus-infection-in-dhaka-bangladesh-2011
#1
Apurba Chakraborty, Mahmudur Rahman, M Jahangir Hossain, Salah Uddin Khan, M Sabbir Haider, Rebeca Sultana, Nadia Ali Rimi, M Saiful Islam, Najmul Haider, Ausraful Islam, Ireen Sultana Shanta, Tahmina Sultana, Abdullah Al Mamun, Nusrat Homaira, Doli Goswami, Kamrun Nahar, A S M Alamgir, Mustafizur Rahman, Khondokar Mahbuba Jamil, Eduardo Azziz-Baumgartner, Natosha Simpson, Bo Shu, Stephen Lindstrom, Nancy Gerloff, C Todd Davis, Jaqueline M Katz, Andrea Mikolon, Timothy M Uyeki, Stephen P Luby, Katharine Sturm-Ramirez
Background: In March 2011, a multidisciplinary team investigated 2 human cases of highly pathogenic avian influenza A(H5N1) virus infection, detected through population-based active surveillance for influenza in Bangladesh, to assess transmission and contain further spread. Methods: We collected clinical and exposure history of the case patients and monitored persons coming within 1 m of a case patient during their infectious period. Nasopharyngeal wash specimens from case patients and contacts were tested with real-time reverse-transcription polymerase chain reaction, and virus culture and isolates were characterized...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934439/age-related-differences-in-influenza-b-infection-by-lineage-in-a-community-based-sentinel-system-2010-2011-to-2015-2016-canada
#2
Danuta M Skowronski, Catharine Chambers, Gaston De Serres, Suzana Sabaiduc, Anne-Luise Winter, James A Dickinson, Jonathan B Gubbay, Kevin Fonseca, Steven J Drews, Hugues Charest, Christine Martineau, Mel Krajden, Martin Petric, Nathalie Bastien, Yan Li
Age-related differences in influenza B lineage detection were explored in the community-based Canadian Sentinel Practitioner Surveillance Network (SPSN) from 2010-2011 to 2015-2016. Whereas >80% of B(Victoria) cases were <40 years old, B(Yamagata) cases showed a bimodal age distribution with 27% who were <20 years old and 61% who were 30-64 years old, but with a notable gap in cases between 20 and 29 years old (4%). Overall, the median age was 20 years lower for B(Victoria) vs B(Yamagata) cases (20 vs 40 years; P < ...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934299/a-novel-copro-diagnostic-molecular-method-for-qualitative-detection-and-identification-of-parasitic-nematodes-in-amphibians-and-reptiles
#3
Lucas G Huggins, Christopher J Michaels, Sheena M Cruickshank, Richard F Preziosi, Kathryn J Else
Anthropogenic disturbance via resource acquisition, habitat fragmentation and climate change, amongst other factors, has led to catastrophic global biodiversity losses and species extinctions at an accelerating rate. Amphibians are currently one of the worst affected classes with at least a third of species categorised as being threatened with extinction. At the same time, they are also critically important for many habitats and provide man with a powerful proxy for ecosystem health by acting as a bioindicator group...
2017: PloS One
https://www.readbyqxmd.com/read/28934232/economic-costs-and-health-related-quality-of-life-for-hand-foot-and-mouth-disease-hfmd-patients-in-china
#4
Yaming Zheng, Mark Jit, Joseph T Wu, Juan Yang, Kathy Leung, Qiaohong Liao, Hongjie Yu
BACKGROUND: Hand, foot and mouth disease (HFMD) is a common illness in China that mainly affects infants and children. The objective of this study is to assess the economic cost and health-related quality of life associated with HFMD in China. METHOD: A telephone survey of caregivers were conducted in 31 provinces across China. Caregivers of laboratory-confirmed HFMD patients who were registered in the national HFMD enhanced surveillance database during 2012-2013 were invited to participate in the survey...
2017: PloS One
https://www.readbyqxmd.com/read/28934206/estimating-the-prevalence-and-intensity-of-schistosoma-mansoni-infection-among-rural-communities-in-western-tanzania-the-influence-of-sampling-strategy-and-statistical-approach
#5
Jared S Bakuza, Matthew J Denwood, Gamba Nkwengulila, Barbara K Mable
BACKGROUND: Schistosoma mansoni is a parasite of major public health importance in developing countries, where it causes a neglected tropical disease known as intestinal schistosomiasis. However, the distribution of the parasite within many endemic regions is currently unknown, which hinders effective control. The purpose of this study was to characterize the prevalence and intensity of infection of S. mansoni in a remote area of western Tanzania. METHODOLOGY/PRINCIPAL FINDINGS: Stool samples were collected from 192 children and 147 adults residing in Gombe National Park and four nearby villages...
September 21, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28934185/hiv-care-outcomes-among-men-who-have-sex-with-men-with-diagnosed-hiv-infection-united-states-2015
#6
Sonia Singh, Andrew Mitsch, Baohua Wu
Gay, bisexual, and other men who have sex with men (collectively referred to as MSM) represent approximately 2% of the U.S. population (1), yet in 2015, MSM accounted for 70% of all diagnoses of human immunodeficiency virus (HIV) infection, including 3% who also were persons who inject drugs (2). During 2008-2014, incidence of HIV infection decreased for groups in all transmission categories except MSM (3). Testing, linkage to and retention in care, and viral suppression are important in reducing HIV transmission...
September 22, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28933171/-the-current-problems-related-to-nosocomial-infections-and-antibiotic-resistance-today
#7
Renata Tejkalová
Nosocomial, also known as hospital acquired infections, are today considered to be an important indicator of the quality of health care in all health establishments. They involve an undesirable complication of the provided health care with a number of negative consequences, such as increased morbidity and mortality, longer time of hospitalization and higher costs. Their incidence at present is also related, among other things, to the broadening, sometimes invasive technical possibilities of diagnosing and therapy...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28931689/vaccination-with-recombinant-parainfluenza-virus-5-expressing-neuraminidase-protects-against-homologous-and-heterologous-influenza-virus-challenge
#8
Alaina J Mooney, Jon D Gabbard, Zhuo Li, Daniel A Dlugolenski, Scott K Johnson, Ralph A Tripp, Biao He, S Mark Tompkins
Seasonal human influenza virus continues to cause morbidity and mortality annually, and highly pathogenic avian influenza (HPAI) along with other emerging influenzas continue to pose pandemic threats. Vaccination is considered the most effective measure for controlling influenza; however, current strategies rely on a precise vaccine match with currently circulating virus strains for efficacy, requiring constant surveillance and regular development of matched vaccines. Current vaccines focus on eliciting specific antibody responses against the hemagglutinin (HA) surface glycoprotein; however, the diversity of HAs across species and antigenic drift of circulating strains enables evasion of virus-inhibiting antibody responses, resulting in vaccine failure...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931688/a-selective-bottleneck-shapes-the-evolutionary-mutant-spectra-of-enterovirus-a71-during-viral-dissemination-in-humans
#9
Sheng-Wen Huang, Yi-Hui Huang, Huey-Pin Tsai, Pin-Hwa Kuo, Shih-Min Wang, Ching-Chuan Liu, Jen-Ren Wang
RNA viruses accumulate mutations to rapidly adapt to environmental changes. Enterovirus A71 (EV-A71) causes various clinical manifestations with occasional severe neurological complications. However, the mechanism by which EV-A71 evolves within the human body is unclear. Utilizing deep sequencing and haplotype analyses of viruses from various tissues of an autopsy patient, we sought to define the evolutionary pathway by which enterovirus A71 evolves fitness for invading the central nervous system in humans...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931674/natural-reassortants-between-potentially-zoonotic-avian-influenza-viruses-h5n1-and-h9n2-from-egypt-display-distinct-pathogenic-phenotypes-in-experimentally-infected-chickens-and-ferrets
#10
Mahmoud M Naguib, Reiner Ulrich, Elisa Kasbohm, Christine L P Eng, Donata Hoffmann, Christian Grund, Martin Beer, Timm C Harder
Co-circulation of zoonotic highly pathogenic avian influenza virus (HPAIV) H5N1 and AIV of subtype H9N2 among poultry in Egypt for at least six years should render this country a hypothetical hotspot for the emergence of reassortant, phenotypically altered viruses, yet no reassortants have been detected in Egypt. The present investigations proved that reassortants between Egyptian H5N1 clade 2.2.1.2 and H9N2 of the G1-B lineage can be generated by co-amplification in embryonated chicken eggs. Reassortants were restricted to the H5N1 subtype and had acquired between two and all six of the internal segments of the H9N2 virus...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931221/modeling-of-us-human-papillomavirus-hpv-seroprevalence-by-age-and-sexual-behavior-indicates-an-increasing-trend-of-hpv-infection-following-the-sexual-revolution
#11
Marc D Ryser, Anne Rositch, Patti E Gravitt
Background: The United States has experienced an increase in the incidence of human papillomavirus (HPV)-related cancers that are not screen-detectable. It has been hypothesized, but not directly demonstrated, that this is due to increasing HPV prevalence in the unvaccinated population. Methods: Female self-reported numbers of lifetime sex partners and HPV serology from the National Health and Nutrition Examination Survey (NHANES) were used to develop mathematical models of sexual partner acquisition and antibody dynamics...
September 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28930019/hantavirus-pulmonary-syndrome-caused-by-maripa-virus-in-french-guiana-2008-2016
#12
Séverine Matheus, Hatem Kallel, Claire Mayence, Laetitia Bremand, Stéphanie Houcke, Dominique Rousset, Vincent Lacoste, Benoit de Thoisy, Didier Hommel, Anne Lavergne
We report 5 human cases of hantavirus pulmonary syndrome found during surveillance in French Guiana in 2008-2016; of the 5 patients, 4 died. This pathogen should continue to be monitored in humans and rodents in effort to reduce the occurrence of these lethal infections in humans stemming from ecosystem disturbances.
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28930014/surveillance-of-extrapulmonary-nontuberculous-mycobacteria-infections-oregon-usa-2007-2012
#13
Emily Henkle, Katrina Hedberg, Sean D Schafer, Kevin L Winthrop
Limited data are available describing extrapulmonary nontuberculous mycobacteria (NTM) infections in the general population. We describe results from statewide population-based laboratory surveillance in Oregon, USA, during 2007-2012. We defined a case of extrapulmonary NTM infection as >1 isolate from skin/soft tissue, disseminated sites, lymph node, joint, or other sites. The annual incidence of extrapulmonary NTM infection (other than Mycobacterium gordonae) was stable, averaging 1.5 cases/100,000 population...
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28930010/disease-burden-of-clostridium-difficile-infections-in-adults-hong-kong-china-2006-2014
#14
Jeffery Ho, Rudin Z W Dai, Thomas N Y Kwong, Xiansong Wang, Lin Zhang, Margaret Ip, Raphael Chan, Peter M K Hawkey, Kelvin L Y Lam, Martin C S Wong, Gary Tse, Matthew T V Chan, Francis K L Chan, Jun Yu, Siew C Ng, Nelson Lee, Justin C Y Wu, Joseph J Y Sung, William K K Wu, Sunny H Wong
Cross-sectional studies suggest an increasing trend in incidence and relatively low recurrence rates of Clostridium difficile infections in Asia than in Europe and North America. The temporal trend of C. difficile infection in Asia is not completely understood. We conducted a territory-wide population-based observational study to investigate the burden and clinical outcomes in Hong Kong, China, over a 9-year period. A total of 15,753 cases were identified, including 14,402 (91.4%) healthcare-associated cases and 817 (5...
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28929960/-antimicrobial-susceptibilities-and-molecular-characterization-of-toxin-positive-clostridium-difficile-isolates-the-first-report-on-the-presence-of-hypervirulent-strains-from-turkey
#15
Emrah Salman, Belkıs Levent, Zeynep Ceren Karahan
Clostridium difficile infection is one of the most important hospital-acquired infections. Infections caused by hypervirulent C.difficile strains which produce toxins at high levels, have higher morbidity and mortality rates, more complications and relapses. They are characterized by higher sporulation ratios and resistance rates for fluoroquinolones. In order to prevent serious morbidities, mortalities and remarkable increase in health costs, highly pathogenic C.difficile strains must be identified before causing severe outbreaks...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28929958/-screening-of-corynebacterium-diphtheriae-corynebacterium-ulcerans-and-corynebacterium-pseudotuberculosis-in-throat-swab-specimens-of-children-with-upper-respiratory-tract-infections
#16
Zeynep Gökçe Gayretli Aydın, Gönül Tanır, Selin Nar Ötgün, Meral Turan, Türkan Aydın Teke, Ayşe Kaman, Selçuk Kılıç
Although a significant decrease has been reported in the incidence of diphteria in many regions of the world following the routine diphtheria immunization programs, the emergence of new cases indicated that toxigenic strains are still circulating in the community. Diphtheria vaccine does not provide protection against asymptomatic carriage and colonization of non-toxigenic Corynebacterium diphtheriae. It is a known fact that invasive infections may arise from non-toxigenic C.diphtheriae strains that the non-toxigenic strains can become toxigenic strains leading to diphteria...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28929534/emerging-arboviruses-in-rio-grande-do-sul-brazil-chikungunya-and-zika-outbreaks-2014-2016
#17
Tatiana Schäffer Gregianini, Tani Ranieri, Cátia Favreto, Zenaida Marion Alves Nunes, Gabriela Luchiari Tumioto Giannini, Nara Druck Sanberg, Marilda Tereza Mar da Rosa, Ana Beatriz Gorini da Veiga
QUESTIONS INVESTIGATED: The recent emergence of arboviruses such as Chikungunya virus (CHIKV) and Zika virus (ZIKV) in Brazil has posed a threat to human health and to the country's economy. Outbreaks occur mainly in tropical areas; however, increasing number of cases have been observed in Rio Grande do Sul (RS), the Southernmost state; therefore, surveillance of these arboviruses is essential for public health measures. DESIGN: In this study, we analyzed 1276 samples from patients with clinically suspected arboviral diseases between 2014 and 2016...
September 20, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/28929229/a-novel-method-for-concentration-of-porcine-reproductive-and-respiratory-syndrome-virus-from-the-environmental-samples-using-self-aggregating-peptide-tagged-cd151-binding-capture
#18
Yang Zong, Xiaoyin Zong, Wenlong Xia, Zhi Wu, Guangya Li, Yangyang Li, Xinyu Zhang, Xiaoli Xia, Huaichang Sun
Environmental surveillance of porcine reproductive and respiratory syndrome virus (PRRSV) represents a key issue in control of the disease. CD151 has recently been recognized as one of several receptors for PRRSV. We describe here a novel method for concentration of PRRSV from the environmental samples by CD151-binding capture. After fusion to self-aggregating peptide ELK16, the large extracellular loop (LEL) of porcine CD151 and its two segments (namely N63 and C63) were expressed in E. coli as protein aggregates...
September 19, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28929098/the-degree-of-one-health-implementation-in-the-west-nile-virus-integrated-surveillance-in-northern-italy-2016
#19
REVIEW
Giulia Paternoster, Laura Tomassone, Marco Tamba, Mario Chiari, Antonio Lavazza, Mauro Piazzi, Anna R Favretto, Giacomo Balduzzi, Alessandra Pautasso, Barbara R Vogler
West Nile virus (WNV) is endemic in the Po valley area, Northern Italy, and within the legal framework of the national plan for the surveillance of human vector-borne diseases, WNV surveillance has over time been implemented. The surveillance plans are based on the transdisciplinary and trans-sectorial collaboration between regional institutions involved in public, animal, and environmental health. This integrated surveillance targets mosquitoes, wild birds, humans, and horses and aims at early detecting the viral circulation and reducing the risk of infection in the human populations...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28928751/-multi-omics-analyses-of-the-development-and-function-of-natural-killer-cells
#20
REVIEW
Yonggang Zhou, Xiuxiu Xu, Zhigang Tian, Haiming Wei
For over four decades, our understanding of natural killer (NK) cells has evolved from the original description of cluster of differentiation (CD)56(+)CD3(-) to establishing NK cells as an important subset of innate lymphocytes in the host's surveillance against viral infections and malignancy. The progress of research on the fundamental properties and therapeutic prospects for translational medicine using NK cells excites immunologists and clinicians. Over the past decade, numerous advances in "-omics"-scale methods and new technological approaches have addressed many essential questions in the biology of NK cells...
2017: Frontiers in Immunology
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