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https://www.readbyqxmd.com/read/29145498/antigenicity-of-the-2015-2016-seasonal-h1n1-human-influenza-virus-ha-and-na-proteins
#1
Amelia M Clark, Marta L DeDiego, Christopher S Anderson, Jiong Wang, Hongmei Yang, Aitor Nogales, Luis Martinez-Sobrido, Martin S Zand, Mark Y Sangster, David J Topham
Antigenic drift of the hemagglutinin (HA) and neuraminidase (NA) influenza virus proteins contributes to reduced vaccine efficacy. To analyze antigenic drift in human seasonal H1N1 viruses derived from the 2009 pandemic H1N1 virus (pH1N1-like viruses) accounts for the limited effectiveness (around 40%) of vaccination against pH1N1-like viruses during the 2015-2016 season, nasal washes/swabs collected from adult subjects in the Rochester, NY area, were used to sequence and isolate the circulating viruses. The HA and NA proteins from viruses circulating during the 2015-2016 season encoded eighteen and fourteen amino acid differences, respectively, when compared to A/California/04/2009, a strain circulating at the origin of the 2009 pandemic...
2017: PloS One
https://www.readbyqxmd.com/read/29144593/risk-factors-for-seasonal-influenza-virus-detection-in-stools-of-patients-consulting-in-general-practice-for-acute-respiratory-infections-in-france-2014-2016
#2
L Minodier, S Masse, L Capai, T Blanchon, P E Ceccaldi, S van der Werf, T Hanslik, N R Charrel, A Falchi
BACKGROUND: Previous studies reported detection of influenza RNA in stools of patients with seasonal influenza infection. While this detection may have a clinical significance, other factors may influence the stools positivity for influenza viruses. OBJECTIVES: The objective of this study was to investigate demographical, clinical and microbiological factors which could favour the presence of influenza viral RNA in the stools of patients with laboratory-confirmed influenza infection...
November 16, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29144242/effects-of-intrapartum-antibiotic-prophylaxis-on-neonatal-acquisition-of-group-b-streptococci
#3
Meiwa Toyofuku, Miyuki Morozumi, Mariko Hida, Yoshitake Satoh, Hiroshi Sakata, Hiroyuki Shiro, Kimiko Ubukata, Mitsuru Murata, Satoshi Iwata
OBJECTIVES: To assess the incidence of colonization with group B streptococci (GBS) among neonates as influenced by maternal GBS carriage and intrapartum antibiotic prophylaxis (IAP). STUDY DESIGN: Between October 2014 and May 2015, nasopharyngeal and rectal swab samples were collected from 730 neonates at 1 week and 1 month after birth. GBS and capsular serotype were identified by real-time polymerase chain reaction and by culture. IAP at delivery was determined retrospectively from hospital records...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29144025/detection-of-atypical-porcine-pestivirus-in-semen-from-commercial-boar-studs-in-the-united-states
#4
I R H Gatto, P H Arruda, C A Visek, J G Victoria, A R Patterson, A C Krull, K J Schwartz, L G de Oliveira, B L Arruda
Atypical porcine pestivirus (APPV) has recently been identified as a cause of congenital tremor (CT) in pigs and has been detected in semen and preputial swabs from boars that were known to be clinically affected with CT. Accordingly, the objectives of this study were to 1) detect the presence of APPV in semen, preputial fluids and preputial swabs from adult boars by quantitative reverse transcription PCR (qRT-PCR) and 2) genetically characterize a subset of positive samples to better understand the ecology of APPV in commercial boar studs and the potential risk of transmission of APPV via semen...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29143704/identification-of-clostridium-difficile-reservoirs-in-the-patient-environment-and-efficacy-of-aerial-hydrogen-peroxide-decontamination
#5
Samuel Yui, Shanom Ali, Monika Muzslay, Annette Jeanes, A Peter R Wilson
OBJECTIVE To identify, using a novel enhanced method of recovery, environmental sites where spores of Clostridium difficile persist despite cleaning and hydrogen peroxide aerial decontamination. DESIGN Cohort study. SETTING Tertiary referral center teaching hospital. METHODS In total, 16 sites representing high-frequency contact or difficult-to-clean surfaces in a single-isolation room or bed area in patient bed bays were sampled before and after terminal or hydrogen peroxide disinfection using a sponge swab...
November 16, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29142048/accurate-pcr-detection-of-influenza-a-b-and-rsv-using-the-cepheid-xpert-flu-rsv-xpress-assay-in-point-of-care-settings-comparison-to-prodesse-proflu
#6
Daniel M Cohen, Jennifer Kline, Larissa S May, Glenn Eric Harnett, Jane Gibson, Stephen Y Liang, Zubaid Rafique, Carina A Rodriguez, Kevin M McGann, Charlotte A Gaydos, Donna Mayne, David Phillips, Jason Cohen
The Xpert Flu+RSV Xpress Assay is a fast, automated in vitro diagnostic test for qualitative detection and differentiation of influenza A, B, and RSV performed on the Cepheid GeneXpert Xpress System. The objective of this study was to establish performance characteristics of the Xpert Flu+RSV Xpress Assay compared to the Prodesse ProFlu+ real-time RT-PCR assay (ProFlu+) for the detection of influenza A and B as well as RSV in a CLIA-waived (CW) setting. Overall, the assay, using fresh and frozen nasopharyngeal (NP) swabs, demonstrated high concordance with ProFlu+ in the combined CW and non-CW settings with Positive Percent Agreements (PPA) (100%, 100%, 97...
November 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29141364/-effects-of-combination-therapy-with-aspirin-prednisone-and-elevit-in-patients-with-unexplained-recurrent-early-pregnancy-loss
#7
H Ou, Q Yu
Objective: To investigate the effect of triple therapy with aspirin, prednisone and Elevit in patients with unexplained recurrent early pregnancy loss. Methods: From January 1, 2013 to December 31, 2016, a total of 353 women of childbearing age were enrolled in Peking Union Medical College Hospital, including blood, urine and vaginal swabs. One hundred and fifty-five patients were observed normal results of blood test, urine test and vaginal swabs. According to the treatment regimen, 155 patients were divided into two groups, 89 patients (57...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141023/domestic-sheep-show-average-coxiella-burnetii-seropositivity-generations-after-a-sheep-associated-human-q-fever-outbreak-and-lack-detectable-shedding-by-placental-vaginal-and-fecal-routes
#8
Ryan D Oliveira, Michelle R Mousel, Kristy L Pabilonia, Margaret A Highland, J Bret Taylor, Donald P Knowles, Stephen N White
Coxiella burnetii is a globally distributed zoonotic bacterial pathogen that causes abortions in ruminant livestock. In humans, an influenza-like illness results with the potential for hospitalization, chronic infection, abortion, and fatal endocarditis. Ruminant livestock, particularly small ruminants, are hypothesized to be the primary transmission source to humans. A recent Netherlands outbreak from 2007-2010 traced to dairy goats resulted in over 4,100 human cases with estimated costs of more than 300 million euros...
2017: PloS One
https://www.readbyqxmd.com/read/29141014/prevalence-and-risk-factors-of-anal-human-papillomavirus-infection-among-hiv-negative-men-who-have-sex-with-men-in-urumqi-city-of-xinjiang-uyghur-autonomous-region-china
#9
Tian Tian, Peierdun Mijiti, Huang Bingxue, Zhang Fadong, Abidan Ainiwaer, Sang Guoyao, Zhang Zhanlin, Yeledan Mahan, Tuo Xiaoqin, Gong Zheng, Dai Jianghong
BACKGROUND: Infection with human papillomavirus (HPV) is the most common sexually transmitted infection among men who have sex with men (MSM). Study on prevalence and risk factors of anal HPV infection among HIV-negative MSM in Northwestern China was rare. METHODS: We performed a cross-sectional study of HPV prevalence using anal swab specimens among HIV-negative MSM in Urumqi city of Xinjiang Uyghur Autonomous Region, China between April 1st and October 30th in 2016...
2017: PloS One
https://www.readbyqxmd.com/read/29140937/sapovirus-in-fecal-and-nasopharyngeal-swab-samples-of-children-with-symptoms-of-acute-gastroenteritis
#10
Thairiny Neres Silva, Nathânia Dábilla, Fabíola Souza Fiaccadori, Divina das Dôres de Paula Cardoso, Teresinha Teixeira de Sousa, Tâmera Nunes Vieira Almeida, Menira Souza
The study included 102 hospitalized children aged 0 to 72 months, with symptoms of acute gastroenteritis. One fecal and one nasopharyngeal swab sample were obtained from each child. Samples were screened for sapovirus and viral loads were determined. Sapovirus was detected in 18.6% of fecal samples and in 36.3% of nasopharyngeal swab samples. High viral loads were detected.
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29140837/disruption-of-biofilms-and-neutralization-of-bacteria-using-hypochlorous-acid-solution-an-in-vivo-and-in-vitro-evaluation
#11
Anna Day, Abdulnaser Alkhalil, Bonnie C Carney, Hilary N Hoffman, Lauren T Moffatt, Jeffrey W Shupp
OBJECTIVES: The aims of this study were to assess the effectiveness of a hypochlorous acid-based wound cleanser (Vashe Wound Solution [VWS], SteadMed Medical, Fort Worth, Texas) in disrupting methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa biofilms relative to other cleansers using an in vitro collagen biofilm model and to evaluate cleansers' cytotoxicity. The bioburden reduction of venous stasis wounds by VWS and another cleanser was evaluated. METHODS: Plates coated with collagen films incubated with active bacteria cultures to yield biofilm mimics were treated with VWS, 1% and 10% povidone-iodine (PI), 0...
December 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29140744/evaluation-of-two-surface-sampling-methods-for-microbiological-and-chemical-analyses-to-assess-the-presence-of-biofilms-in-food-companies
#12
Sharon Maes, Son Nguyen Huu, Marc Heyndrickx, Stephanie van Weyenberg, Hans Steenackers, Alex Verplaetse, Thijs Vackier, Imca Sampers, Katleen Raes, Koen De Reu
Biofilms are an important source of contamination in food companies, yet the composition of biofilms in practice is still mostly unknown. The chemical and microbiological characterization of surface samples taken after cleaning and disinfection is very important to distinguish free-living bacteria from the attached bacteria in biofilms. In this study, sampling methods that are potentially useful for both chemical and microbiological analyses of surface samples were evaluated. In the manufacturing facilities of eight Belgian food companies, surfaces were sampled after cleaning and disinfection using two sampling methods: the scraper-flocked swab method and the sponge stick method...
November 15, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29140439/bivalent-vaccine-effectiveness-against-type-specific-hpv-positivity-evidence-for-cross-protection-against-oncogenic-types-among-dutch-sti-clinic-visitors
#13
Petra J Woestenberg, Audrey J King, Birgit H B van Benthem, Robine Donken, Suzan Leussink, Fiona R M van der Klis, Hester E de Melker, Marianne A B van der Sande, Christian J P A Hoebe, Johannes A Bogaards
Background: Observational post-marketing studies are important to assess vaccine effectiveness (VE). We estimated VE from the bivalent human papillomavirus (HPV) vaccine against HPV positivity of vaccine and non-vaccine types in a high-risk population. Methods: We included all vaccine-eligible women from the PASSYON study, a biennial cross-sectional survey in Dutch sexually transmitted infection clinics. Vaginal swabs were analyzed using a PCR-based assay (SPF10-LiPA25) able to detect the 12 high-risk HPV (hrHPV) types 16/18/31/33/35/39/45/51/52/56/58/59...
November 11, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29137903/implementation-of-alere-i-influenza-a-b-point-of-care-test-for-the-diagnosis-of-influenza-in-an-emergency-department
#14
E Trabattoni, V Le, B Pilmis, G Pean de Ponfilly, C Caisso, C Couzigou, B Vidal, A Mizrahi, O Ganansia, A Le Monnier, B Lina, J C Nguyen Van
STUDY OBJECTIVE: This study aimed to evaluate the impact of implementing rapid point-of-care testing (POCT) with the Alere i Influenza A & B in an emergency department (ED) during an influenza epidemic. METHODS: Direct nasal swabs were prospectively collected following the physical examination of patients aged >18years who presented to the ED of a tertiary hospital in France with influenza-like illness (ILI) symptoms (N=301) between February 1st and March 31st, 2016, which coincided with an influenza epidemic...
October 18, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29137160/the-influence-of-toothpaste-containing-australian-melaleuca-alternifolia-oil-and-ethanolic-extract-of-polish-propolis-on-oral-hygiene-and-microbiome-in-patients-requiring-conservative-procedures
#15
Tomasz Piekarz, Anna Mertas, Karolina Wiatrak, Rafał Rój, Patryk Kownacki, Joanna Śmieszek-Wilczewska, Ewelina Kopczyńska, Maciej Wrzoł, Maria Cisowska, Ewelina Szliszka, Zenon P Czuba, Iwona Niedzielska, Tadeusz Morawiec
The study was based on the use of a toothpaste with antiphlogistic activity, containing Australian Melaleuca alternifolia oil (tea tree oil-TTO) and ethanolic extract of Polish propolis (EEP). Fifty-one patients with varying conditions of the gingiva were divided into two groups. The study group received the toothpaste with TTO and EEP, while the control group received the same toothpaste but without TTO and EEP. Approximal plaque index (API), simplified oral hygiene index (OHI-s) and modified sulcus bleeding index (mSBI) were assessed in three subsequent stages...
November 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29136420/assessment-of-environmental-contamination-with-pathogenic-bacteria-at-a-hospital-laundry-facility
#16
Karen E Michael, David No, William E Daniell, Noah S Seixas, Marilyn C Roberts
Little is known about exposure to pathogenic bacteria among industrial laundry workers who work with soiled clinical linen. To study worker exposures, an assessment of surface contamination was performed at an industrial laundry facility serving hospitals in Seattle, WA, USA. Surface swab samples (n = 240) from the environment were collected during four site visits at 3-month intervals. These samples were cultured for Clostridium difficile, methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant enterococci (VRE)...
November 10, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29135828/improved-diagnostic-performance-of-an-immunofluorescence-based-rapid-antigen-detection-test-for-group-a-streptococci-in-children-with-pharyngitis
#17
Laurence Lacroix, Abdessalam Cherkaoui, Diane Schaller, Sergio Manzano, Annick Galetto-Lacour, Ulrich Pfeifer, René Tabin, Alain Gervaix
BACKGROUND: Accurate diagnosis and appropriate treatment of Group A streptococcal (GAS) pharyngitis are important to prevent complications. Most available rapid antigen detection tests (RADTs) have shown excellent specificity but often lack sensitivity. Our objective was to compare the diagnostic performances of a new fluorescence-based immunoassay and a classic immunochromatographic RADT using standard throat culture or PCR as references. MATERIALS/METHODS: Prospective observational study in 2 pediatric emergency departments in children aged 3 to 15 years old presenting with pharyngitis and a McIsaac score ≥ 2...
November 11, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29134436/common-cutaneous-bacteria-isolated-from-snakes-inhibit-growth-of-ophidiomyces-ophiodiicola
#18
Aubree J Hill, Jacob E Leys, Danny Bryan, Fantasia M Erdman, Katherine S Malone, Gabrielle N Russell, Roger D Applegate, Heather Fenton, Kevin Niedringhaus, Andrew N Miller, Matthew C Allender, Donald M Walker
There is increasing concern regarding potential impacts of snake fungal disease (SFD), caused by Ophidiomyces ophiodiicola (Oo), on free-ranging snake populations in the eastern USA. The snake cutaneous microbiome likely serves as the first line of defense against Oo and other pathogens; however, little is known about microbial associations in snakes. The objective of this study was to better define the composition and immune function of the snake cutaneous microbiome. Eight timber rattlesnakes (Crotalus horridus) and four black racers (Coluber constrictor) were captured in Arkansas and Tennessee, with some snakes exhibiting signs of SFD...
November 13, 2017: EcoHealth
https://www.readbyqxmd.com/read/29134203/use-of-multiplex-quantitative-pcr-to-evaluate-the-impact-of-pneumococcal-conjugate-vaccine-on-nasopharyngeal-pneumococcal-colonization-in-african-children
#19
Courtney P Olwagen, Peter V Adrian, Marta C Nunes, Michelle J Groome, Mark F Cotton, Avy Violari, Shabir A Madhi
Pneumococcal conjugate vaccine (PCV) immunization of children induces shifts in colonizing pneumococcal serotypes. This study evaluated the effect of infant vaccination with 7-valent PCV (PCV7) on vaccine serotype (VT) colonization and whether the increase in nonvaccine serotype (NVT) was due to either unmasking of previously low-density-colonizing serotypes or increase in acquisition of NVT. A multiplex quantitative PCR (qPCR) was used to evaluate VT and NVT nasopharyngeal colonization in archived swabs of PCV-vaccinated and PCV-unvaccinated African children at 9 and 15 to 16 months of age...
November 2017: MSphere
https://www.readbyqxmd.com/read/29133803/microbial-diversity-of-genital-ulcers-of-hsv-2-seropositive-women
#20
Supriya D Mehta, Ashish K Pradhan, Stefan J Green, Ankur Naqib, Elijah Odoyo-June, Charlotte A Gaydos, Sheila Barry, Alan Landay, Robert C Bailey
We measured the microbial community structure of genital ulcers in women. Swabs from clinically detected ulcers were tested for HSV-2 and Treponema pallidum by polymerase chain reaction (PCR). HSV-2 and T. pallidum were detected by serum antibody testing. Microbial community structure was characterized by high-throughput 16 s rRNA gene amplicon sequencing. Multiple group testing and Elastic net and Lasso regressions identified taxa associated with differences in factors of interest. Among 49 ulcer specimens from 49 HSV-2 seropositive women, by PCR HSV-2 was recovered from 28 (57%) specimens and T...
November 13, 2017: Scientific Reports
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