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Resultados  1-12 de 3.418

Influenza Activity - United States, September 30-December 1, 2018.

Autor(es): Budd, Alicia P; Abd Elal, Anwar Isa; Alabi, Noreen; Barnes, John; Blanton, Lenee; Brammer, Lynnette; Burns, Erin; Cummings, Charisse N; Dugan, Vivien G; Garg, Shikha; Garten, Rebecca; Grohskopf, Lisa A; Gubareva, Larisa; Kniss, Krista; Kramer, Natalie; O'Halloran, Alissa; Sessions, Wendy; Taylor, Calli; Wentworth, David E; Xu, Xiyan; Fry, Alicia M; Katz, Jacqueline; Jernigan, Daniel
Fonte: MMWR Morb Mortal Wkly Rep;67(49): 1369-1371, 2018 Dec 14.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30543604
Resumo: Influenza activity in the United States was low during October 2018, and, although it increased slowly during November, activity remains low across most of the country.* During the week ending December 1, 2018, the percentage of outpatient visits for influenza-like illness (ILI) was equal to the national baseline (Figure) and was at or slightly above the region-specific baseline in four of the 10 U.S. Department of Health and Human Services regions (Regions 4 and 7-9). The majority of juris (mais)

Single-Step Detection of the Influenza Virus Hemagglutinin Using Bacterially-Produced Quenchbodies.

Autor(es): Jeong, Hee-Jin; Dong, Jinhua; Ueda, Hiroshi
Fonte: Sensors (Basel);19(1)2018 Dec 23.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30583603
Resumo: We have successfully generated a Quenchbody that enables the detection of the influenza virus hemagglutinin (HA), in a simple and convenient manner. By two-site labeling of the bacterially-produced anti-HA Fab with ATTO520, its fluorescence intensity was increased to 4.4-fold, in the presence of a nanomolar concentration of H1N1 HA. Our results indicate the potential use of this Quenchbody, as a sensor for the simple in situ detection of influenza A virus.

Evolution of equine influenza viruses (H3N8) during a Brazilian outbreak, 2015

Autor(es): Favaro, Patricia Filippsen; Fernandes, Wilson Roberto; Reischak, Dilmara; Brandão, Paulo Eduardo; Silva, Sheila Oliveira de Souza; Richtzenhain, Leonardo José
Fonte: Braz. j. microbiol;49(2): 336-346, Apr.-June 2018. tab, graf
LILACS - Literatura Latino-Americana e do Caribe em Ciências da Saúde ID: 889223
Resumo: Abstract Equine influenza is one of the major respiratory infectious diseases in horses. An equine influenza virus outbreak was identified in vaccinated and unvaccinated horses in a veterinary school hospital in São Paulo, SP, Brazil, in September 2015. The twelve equine influenza viruses isolated belonged to Florida Clade 1. The hemagglutinin and neuraminidase amino acid sequences were compared with the recent isolates from North and South America and the World Organisation for Animal Hea (mais)

Monitoramento de vírus respiratórios na região metropolitana de Belo Horizonte, 2011 a 2013/ Monitoreo de vírus respiratórios en la región metropolitana de Belo Horizonte, 2011-2013/ Monitoring respiratory virus infection in the metropolitan area of Belo Horizonte, Brazil, 2011-2013

Autor(es): Monteiro, Cristiane Campos; Dezanet, Lorenza Nogueira Campos; França, Elisabeth Barboza
Fonte: Epidemiol. serv. saúde;25(2): 233-242, abr.-jun. 2016. tab, graf
LILACS - Literatura Latino-Americana e do Caribe em Ciências da Saúde ID: 785217
Resumo: OBJETIVO: analisar a circulação dos vírus respiratórios em residentes na região metropolitana de Belo Horizonte, Brasil, hospitalizados em Belo Horizonte, de 2011 a 2013. MÉTODOS: estudo descritivo de 5.158 indivíduos com síndrome respiratória aguda grave; foram comparadas as características dos casos confirmados com casos descartados ou sem coleta de swab. RESULTADOS: metade dos vírus isolados foi da influenza A, especialmente os subtipos A(H1N1)pdm09 em pessoas de 20-59 anos e (mais)

Healthcare workers mobile phone usage: A potential risk for viral contamination. Surveillance pilot study.

Autor(es): Cavari, Yuval; Kaplan, Or; Zander, Aviva; Hazan, Guy; Shemer-Avni, Yonat; Borer, Abraham
Fonte: Infect Dis (Lond);48(6): 432-5, 2016.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 27030915
Resumo: BACKGROUND: Mobile phones are commonly used by healthcare workers (HCW) in the working environment, as they allow instant communication and endless resource utilisation. Studies suggest that mobile phones have been implicated as reservoirs of bacterial pathogens, with the potential to cause nosocomial infection. This study aimed to investigate the presence of Respiratory Syncytial Virus, Adenovirus and Influenza Virus on HCWs mobile phones and to identify risk factors implied by HCWs practi (mais)

Key differences in B cell activation patterns and immune correlates among treated HIV-infected patients versus healthy controls following influenza vaccination.

Autor(es): Luo, Zhenwu; Ma, Lei; Zhang, Lumin; Martin, Lisa; Wan, Zhuang; Warth, Stephanie; Kilby, Andrew; Gao, Yong; Bhargava, Pallavi; Li, Zhen; Wu, Hao; Meissner, Eric G; Li, Zihai; Kilby, J Michael; Liao, Guoyang; Jiang, Wei
Fonte: Vaccine;34(16): 1945-55, 2016 Apr 07.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26721328
Resumo: BACKGROUND: There is increasing recognition of the role of B cell dysfunction in HIV pathogenesis, but little is known about how these perturbations may influence responses to vaccinations. METHODS: Healthy controls (n=16) and antiretroviral therapy (ART)-treated aviremic HIV-infected subjects (n=26) receiving standard-of-care annual influenza vaccinations were enrolled in the present study. Total bacterial 16S rDNA levels were assessed by quantitative polymerase chain reactions in plasma. (mais)

A systematic review of reported reassortant viral lineages of influenza A.

Autor(es): Pinsent, Amy; Fraser, Christophe; Ferguson, Neil M; Riley, Steven
Fonte: BMC Infect Dis;16: 3, 2016 Jan 05.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26732146
Resumo: BACKGROUND: Most previous evolutionary studies of influenza A have focussed on genetic drift, or reassortment of specific gene segments, hosts or subtypes. We conducted a systematic literature review to identify reported claimed reassortant influenza A lineages with genomic data available in GenBank, to obtain 646 unique first-report isolates out of a possible 20,781 open-access genomes. RESULTS: After adjusting for correlations, only: swine as host, China, Europe, Japan and years between 1 (mais)

Ring test evaluation of the detection of influenza A virus in swine oral fluids by real-time reverse-transcription polymerase chain reaction and virus isolation.

Autor(es): Goodell, Christa K; Zhang, Jianqiang; Strait, Erin; Harmon, Karen; Patnayak, Devi; Otterson, Tracy; Culhane, Marie; Christopher-Hennings, Jane; Clement, Travis; Leslie-Steen, Pamela; Hesse, Richard; Anderson, Joe; Skarbek, Kevin; Vincent, Amy; Kitikoon, Pravina; Swenson, Sabrina; Jenkins-Moore, Melinda; McGill, Jodi; Rauh, Rolf; Nelson, William; O'Connell, Catherine; Shah, Rohan; Wang, Chong; Main, Rodger; Zimmerman, Jeffrey J
Fonte: Can J Vet Res;80(1): 12-20, 2016 Jan.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26733728
Resumo: The probability of detecting influenza A virus (IAV) in oral fluid (OF) specimens was calculated for each of 13 assays based on real-time reverse-transcription polymerase chain reaction (rRT-PCR) and 7 assays based on virus isolation (VI). The OF specimens were inoculated with H1N1 or H3N2 IAV and serially diluted 10-fold (10(-1) to 10(-8)). Eight participating laboratories received 180 randomized OF samples (10 replicates × 8 dilutions × 2 IAV subtypes plus 20 IAV-negative samples) and p (mais)

Influenza Vaccine Effectiveness Against 2009 Pandemic Influenza A(H1N1) Virus Differed by Vaccine Type During 2013-2014 in the United States.

Autor(es): Gaglani, Manjusha; Pruszynski, Jessica; Murthy, Kempapura; Clipper, Lydia; Robertson, Anne; Reis, Michael; Chung, Jessie R; Piedra, Pedro A; Avadhanula, Vasanthi; Nowalk, Mary Patricia; Zimmerman, Richard K; Jackson, Michael L; Jackson, Lisa A; Petrie, Joshua G; Ohmit, Suzanne E; Monto, Arnold S; McLean, Huong Q; Belongia, Edward A; Fry, Alicia M; Flannery, Brendan
Fonte: J Infect Dis;213(10): 1546-56, 2016 May 15.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26743842
Resumo: BACKGROUND: The predominant strain during the 2013-2014 influenza season was 2009 pandemic influenza A(H1N1) virus (A[H1N1]pdm09). This vaccine-component has remained unchanged from 2009. METHODS: The US Flu Vaccine Effectiveness Network enrolled subjects aged ≥6 months with medically attended acute respiratory illness (MAARI), including cough, with illness onset ≤7 days before enrollment. Influenza was confirmed by reverse-transcription polymerase chain reaction (RT-PCR). We de (mais)

Concurrent epidemics of influenza A/H3N2 and A/H1N1pdm in Southern China: A serial cross-sectional study.

Autor(es): Wu, Chunli; Wang, Maggie Haitian; Lu, Xing; Chong, Ka Chun; He, Jason; Yau, Chun-Yip; Hui, Mark; Cheng, Xiaowen; Yang, Li; Zee, Benny Chung-Ying; Zhang, Renli; He, Ming-Liang
Fonte: J Infect;72(3): 369-76, 2016 Mar.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26747013
Resumo: OBJECTIVES: This study aimed to elucidate the antibody response pattern of multiple influenza subtypes through a 4-year serological study of a general population in Shenzhen, Southern China. METHODS: A serial cross-sectional serological survey was conducted at eight time points between 2009 and 2012. A total number of 5876 subjects were recruited from all age groups. The influenza subtypes tested were A/H1N1, A/H3N2, B/Yamagata, B/Victoria, and A/H1N1pdm. Genetic sequencing and phylogenetic (mais)

Prevalence of Influenza A Virus in Exhibition Swine during Arrival at Agricultural Fairs.

Autor(es): Bliss, N; Nelson, S W; Nolting, J M; Bowman, A S
Fonte: Zoonoses Public Health;63(6): 477-85, 2016 09.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26750204
Resumo: The exhibition swine at agricultural fairs provides a critical human-swine interface that allows for the bidirectional transmission of influenza A virus (IAV). Previous IAV surveillance at the end of fairs has resulted in frequent detection of IAV-infected swine; little is known, however, about the frequency with which swine arrive at fairs already infected with IAV. We investigated the IAV prevalence among exhibition swine entering fairs to better understand the epidemiology of IAV in this (mais)
Resultados  1-12 de 3.418