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Pesquisa | Influenza A (H1N1)

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Resultados  1-12 de 835
1.

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)
2.

The usefulness of school-based syndromic surveillance for detecting malaria epidemics: experiences from a pilot project in Ethiopia.

Autor(es): Ashton, Ruth A; Kefyalew, Takele; Batisso, Esey; Awano, Tessema; Kebede, Zelalem; Tesfaye, Gezahegn; Mesele, Tamiru; Chibsa, Sheleme; Reithinger, Richard; Brooker, Simon J
Fonte: BMC Public Health;16: 20, 2016 Jan 09.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26749325
Resumo: BACKGROUND: Syndromic surveillance is a supplementary approach to routine surveillance, using pre-diagnostic and non-clinical surrogate data to identify possible infectious disease outbreaks. To date, syndromic surveillance has primarily been used in high-income countries for diseases such as influenza--however, the approach may also be relevant to resource-poor settings. This study investigated the potential for monitoring school absenteeism and febrile illness, as part of a school-based s (mais)
3.

Influenza virus surveillance in Argentina during the 2012 season: antigenic characterization, genetic analysis and antiviral susceptibility.

Autor(es): Benedetti, E; Daniels, R S; Pontoriero, A; Russo, M; Avaro, M; Czech, A; Campos, A; Periolo, N; Gregory, V; McCauley, J W; Baumeister, E G
Fonte: Epidemiol Infect;144(4): 751-67, 2016 Mar.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26345289
Resumo: The activity and circulation of influenza viruses in Argentina was studied during 2012 as part of the Argentinean Surveillance for Influenza and other Respiratory Viruses, in the context of Global Influenza Surveillance. The antigenicity and molecular characteristics of haemagglutinins (HA) of circulating influenza A and B viruses were analysed to assess the emergence of virus variants. Susceptibility to oseltamivir and zanamivir was evaluated by enzymatic assay and results were backed-up b (mais)
4.

Improving the representativeness of influenza viruses shared within the WHO Global Influenza Surveillance and Response System.

Autor(es): Pereyaslov, Dmitriy; Zemtsova, Galina; Gruessner, Christine; Daniels, Rodney S; McCauley, John W; Brown, Caroline S
Fonte: Influenza Other Respir Viruses;10(2): 68-75, 2016 Mar.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26589132
Resumo: BACKGROUND: Sharing influenza viruses within the WHO Global Influenza Surveillance and Response System is crucial for monitoring evolution of influenza viruses. OBJECTIVES: Analysis of timeliness and geographic representativeness of viruses shared by National Influenza Centres (NICs) in the WHO European Region with the London WHO Collaborating Centre for Reference and Research on Influenza for the Northern Hemisphere's 2010-2011 and 2011-2012 influenza seasons. MATERIALS AND METHODS: Data f (mais)
5.

Risk of Guillain-Barré syndrome after exposure to pandemic influenza A(H1N1)pdm09 vaccination or infection: a Norwegian population-based cohort study.

Autor(es): Ghaderi, Sara; Gunnes, Nina; Bakken, Inger Johanne; Magnus, Per; Trogstad, Lill; Håberg, Siri Eldevik
Fonte: Eur J Epidemiol;31(1): 67-72, 2016 Jan.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26008750
Resumo: Vaccinations and infections are possible triggers of Guillain-Barré syndrome (GBS). However, studies on GBS after vaccinations during the influenza A(H1N1)pmd09 pandemic in 2009, show inconsistent results. Only few studies have addressed the role of influenza infection. We used information from national health data-bases with information on the total Norwegian population (N = 4,832,211). Cox regression analyses with time-varying covariates and self-controlled case series was applied. The r (mais)
6.

Geographical variation in relative risks associated with heat: Update of Spain's Heat Wave Prevention Plan.

Autor(es): Díaz, J; Carmona, R; Mirón, I J; Ortiz, C; León, I; Linares, C
Fonte: Environ Int;85: 273-83, 2015 Dec.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 26433629
Resumo: A decade after the implementation of prevention plans designed to minimise the impact of high temperatures on health, some countries have decided to update these plans in order to improve the weakness detected in these ten years of operation. In the case of Spain, this update has fundamentally consisted of changing the so-called "threshold" or "trigger" temperatures used to activate the plan, by switching from temperature values based on climatological criteria to others obtained by epidemi (mais)
7.

Excess mortality among the elderly in European countries, December 2014 to February 2015.

Autor(es): Molbak, K; Espenhain, L; Nielsen, J; Tersago, K; Bossuyt, N; Denissov, G; Baburin, A; Virtanen, M; Fouillet, A; Sideroglou, T; Gkolfinopoulou, K; Paldy, A; Bobvos, J; van Asten, L; de Lange, M; Nunes, B; da Silva, S; Larrauri, A; Gomez, I L; Tsoumanis, A; Junker, C; Green, H; Pebody, R; McMenamin, J; Reynolds, A; Mazick, A
Fonte: Euro Surveill;20(11)2015 Mar 19.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25811643
Resumo: Since December 2014 and up to February 2015, the weekly number of excess deaths from all-causes among individuals ≥ 65 years of age in 14 European countries have been significantly higher than in the four previous winter seasons. The rise in unspecified excess mortality coincides with increased proportion of influenza detection in the European influenza surveillance schemes with a main predominance of influenza A (H3N2) viruses seen throughout Europe in the current season, though cold snaps and other respiratory infections may also have had an effect.
8.

Detection of varying influenza circulation within England in 2012/13: informing antiviral prescription and public health response.

Autor(es): Green, H K; Zhao, H; Boddington, N L; Andrews, N; Durnall, H; Elliot, A J; Smith, G; Gorton, R; Donati, M; Ellis, J; Zambon, M; Pebody, R
Fonte: J Public Health (Oxf);37(2): 295-304, 2015 Jun.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25096307
Resumo: BACKGROUND: Subnational variation of 2009 pandemic influenza activity in England has been reported; however, little work has been published on this topic for seasonal influenza. If variation is present, this knowledge may assist with both identifying the onset of influenza epidemics, informing community antiviral prescription and local health planning. METHODS: An end-of-season analysis of influenza surveillance systems (acute respiratory outbreaks, primary care consultations, virological t (mais)
9.

The Possible Impact of Vaccination for Seasonal Influenza on Emergence of Pandemic Influenza via Reassortment.

Autor(es): Zhang, Xu-Sheng; Pebody, Richard; De Angelis, Daniela; White, Peter J; Charlett, Andre; McCauley, John W
Fonte: PLoS One;9(12): e114637, 2014.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25494180
Resumo: BACKGROUND: One pathway through which pandemic influenza strains might emerge is reassortment from coinfection of different influenza A viruses. Seasonal influenza vaccines are designed to target the circulating strains, which intuitively decreases the prevalence of coinfection and the chance of pandemic emergence due to reassortment. However, individual-based analyses on 2009 pandemic influenza show that the previous seasonal vaccination may increase the risk of pandemic A(H1N1) pdm09 infe (mais)
10.

Update: influenza activity - United States, September 28- December 6, 2014.

Autor(es): Rolfes, Melissa; Blanton, Lenee; Brammer, Lynnette; Smith, Sophie; Mustaquim, Desiree; Steffens, Craig; Cohen, Jessica; Leon, Michelle; Chaves, Sandra S; Abd Elal, Anwar Isa; Gubareva, Larisa; Hall, Henrietta; Wallis, Teresa; Villanueva, Julie; Bresee, Joseph; Cox, Nancy; Finelli, Lyn
Fonte: MMWR Morb Mortal Wkly Rep;63(50): 1189-94, 2014 Dec 19.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25522086
Resumo: CDC collects, compiles, and analyzes data on influenza activity year-round in the United States (http://www.cdc.gov/flu/weekly/fluactivitysurv.htm). The influenza season generally begins in the fall and continues through the winter and spring months; however, the timing and severity of circulating influenza viruses can vary by geographic location and season. Influenza activity in the United States increased starting mid-October through December. This report summarizes U.S. influenza activity during September 28-December 6, 2014.
11.

Detection of hospital outbreaks of influenza-like illness based on excess of incidence rates compared to the community.

Autor(es): Vanhems, Philippe; Voirin, Nicolas; Bénet, Thomas; Roche, Sylvain; Escuret, Vanessa; Régis, Corinne; Giard, Marine; Lina, Bruno; Comte, Brigitte; Coppéré, Brigitte; Ecochard, René
Fonte: Am J Infect Control;42(12): 1325-7, 2014 Dec.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25444307
Resumo: The risk of nosocomial influenza-like illness (noso-ILI) compared with that of community-acquired ILI was calculated during 3 influenza seasons (2004-2007) at a 1100-bed university hospital with a total of 21,519 hospitalized patients. Outbreaks of noso-ILI occurred in each season, although a protective effect against noso-ILI was also identified for other wards.
12.

A Bayesian spatio-temporal approach for real-time detection of disease outbreaks: a case study.

Autor(es): Zou, Jian; Karr, Alan F; Datta, Gauri; Lynch, James; Grannis, Shaun
Fonte: BMC Med Inform Decis Mak;14: 108, 2014 Dec 05.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 25476843
Resumo: BACKGROUND: For researchers and public health agencies, the complexity of high-dimensional spatio-temporal data in surveillance for large reporting networks presents numerous challenges, which include low signal-to-noise ratios, spatial and temporal dependencies, and the need to characterize uncertainties. Central to the problem in the context of disease outbreaks is a decision structure that requires trading off false positives for delayed detections. METHODS: In this paper we apply a prev (mais)
Resultados  1-12 de 835