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Results  1-12 de 987
1.

Virological and epidemiological patterns of swine influenza A virus infections in France: Cumulative data from the RESAVIP surveillance network, 2011-2018.

Author(s): Hervé, Séverine; Garin, Emmanuel; Calavas, Didier; Lecarpentier, Ludovic; Ngwa-Mbot, David; Poliak, Sylvie; Wendling, Sébastien; Rose, Nicolas; Simon, Gaëlle
Source: Vet Microbiol;239: 108477, 2019 Dec.
MEDLINE - International Database for Medical Literature PMID: 31767089
Abstract: Swine influenza A viruses (swIAVs) cause acute respiratory syndromes in pigs and may also infect humans. Following the 2009 pandemic, a network was established in France to reinforce swIAV monitoring. This study reports virological and epidemiological data accumulated through passive surveillance conducted during 1,825 herd visits from 2011 to 2018. Among them, 887 (48.6 %) tested swIAV-positive. The proportion of positive cases remained stable year-on-year and year-round. The European avia (more)
2.

Estimating influenza incidence using search query deceptiveness and generalized ridge regression.

Author(s): Priedhorsky, Reid; Daughton, Ashlynn R; Barnard, Martha; O'Connell, Fiona; Osthus, Dave
Source: PLoS Comput Biol;15(10): e1007165, 2019 10.
MEDLINE - International Database for Medical Literature PMID: 31574086
Abstract: Seasonal influenza is a sometimes surprisingly impactful disease, causing thousands of deaths per year along with much additional morbidity. Timely knowledge of the outbreak state is valuable for managing an effective response. The current state of the art is to gather this knowledge using in-person patient contact. While accurate, this is time-consuming and expensive. This has motivated inquiry into new approaches using internet activity traces, based on the theory that lay observations of (more)
3.

Update: Influenza Activity - United States and Worldwide, May 19-September 28, 2019, and Composition of the 2020 Southern Hemisphere Influenza Vaccine.

Author(s): Epperson, Scott; Davis, C Todd; Brammer, Lynnette; Abd Elal, Anwar Isa; Ajayi, Noreen; Barnes, John; Budd, Alicia P; Burns, Erin; Daly, Peter; Dugan, Vivien G; Fry, Alicia M; Jang, Yunho; Johnson, Sara Jo; Kniss, Krista; Kondor, Rebecca; Grohskopf, Lisa A; Gubareva, Larisa; Merced-Morales, Angiezel; Sessions, Wendy; Stevens, James; Wentworth, David E; Xu, Xiyan; Jernigan, Daniel
Source: MMWR Morb Mortal Wkly Rep;68(40): 880-884, 2019 Oct 11.
MEDLINE - International Database for Medical Literature PMID: 31600182
Abstract: During May 19-September 28, 2019,* low levels of influenza activity were reported in the United States, with cocirculation of influenza A and influenza B viruses. In the Southern Hemisphere seasonal influenza viruses circulated widely, with influenza A(H3) predominating in many regions; however, influenza A(H1N1)pdm09 and influenza B viruses were predominant in some countries. In late September, the World Health Organization (WHO) recommended components for the 2020 Southern Hemisphere infl (more)
4.

[Influenza-like illness outbreaks in China during 2017-2018 surveillance season].

Author(s): Liu, L J; Yang, J; Zhu, F; Wang, L J; Guo, Q; Tang, J; Fang, Q Q; Wang, D Y; Chen, T
Source: Zhonghua Yu Fang Yi Xue Za Zhi;53(10): 982-986, 2019 Oct 06.
MEDLINE - International Database for Medical Literature PMID: 31607042
Abstract: Objective: To analyze epidemiological characteristics of influenza-like illness outbreaks in mainland China during 2017-2018 surveillance season, and to provide scientific evidence for developing influenza prevention and control strategies. Methods: We collected the data on reported influenza outbreaks in 2017-2018 surveillance season from China Influenza Surveillance Information System and China Public Health Emergency Management Information System and analyzed the data of laboratory-confi (more)
5.

Influenza pandemic preparedness in the World Health Organization Eastern Mediterranean Region.

Author(s): Khan, Wasiq; El Rifay, Amira; Malik, Mamunur; Kayali, Ghazi
Source: East Mediterr Health J;25(8): 583-590, 2019 Oct 07.
MEDLINE - International Database for Medical Literature PMID: 31612973
Abstract: Background: Preparedness is key to controlling influenza pandemics and epidemics. Aims: A comprehensive literature review was conducted to analyse the response and preparedness to influenza pandemics in the World Health Organization Eastern Mediterranean Region (WHO/EMR). Methods: Published and grey literatures were searched in PubMed, Scopus, and Google scholar, and the WHO/EMR online databases. International and national plans were searched via official websites of the relevant ministries (more)
6.

The epidemiological signature of influenza B virus and its B/Victoria and B/Yamagata lineages in the 21st century.

Author(s): Caini, Saverio; Kusznierz, Gabriela; Garate, Verònica Vera; Wangchuk, Sonam; Thapa, Binay; de Paula Júnior, Francisco José; Ferreira de Almeida, Walquiria Aparecida; Njouom, Richard; Fasce, Rodrigo A; Bustos, Patricia; Feng, Luzhao; Peng, Zhibin; Araya, Jenny Lara; Bruno, Alfredo; de Mora, Doménica; Barahona de Gámez, Mónica Jeannette; Pebody, Richard; Zambon, Maria; Higueros, Rocio; Rivera, Rudevelinda; Kosasih, Herman; Castrucci, Maria Rita; Bella, Antonino; Kadjo, Hervé A; Daouda, Coulibaly; Makusheva, Ainash; Bessonova, Olga; Chaves, Sandra S; Emukule, Gideon O; Heraud, Jean-Michel; Razanajatovo, Norosoa H; Barakat, Amal; El Falaki, Fatima; Meijer, Adam; Donker, Gé A; Huang, Q Sue; Wood, Tim; Balmaseda, Angel; Palekar, Rakhee; Arévalo, Brechla Moreno; Rodrigues, Ana Paula; Guiomar, Raquel; Lee, Vernon Jian Ming; Ang, Li Wei; Cohen, Cheryl; Treurnicht, Florette; Mironenko, Alla; Holubka, Olha; Bresee, Joseph; Brammer, Lynnette
Source: PLoS One;14(9): e0222381, 2019.
MEDLINE - International Database for Medical Literature PMID: 31513690
Abstract: We describe the epidemiological characteristics, pattern of circulation, and geographical distribution of influenza B viruses and its lineages using data from the Global Influenza B Study. We included over 1.8 million influenza cases occurred in thirty-one countries during 2000-2018. We calculated the proportion of cases caused by influenza B and its lineages; determined the timing of influenza A and B epidemics; compared the age distribution of B/Victoria and B/Yamagata cases; and evaluate (more)
7.

Update: Influenza Activity in the United States During the 2018-19 Season and Composition of the 2019-20 Influenza Vaccine.

Author(s): Xu, Xiyan; Blanton, Lenee; Elal, Anwar Isa Abd; Alabi, Noreen; Barnes, John; Biggerstaff, Matthew; Brammer, Lynnette; Budd, Alicia P; Burns, Erin; Cummings, Charisse N; Garg, Shikha; Kondor, Rebecca; Gubareva, Larisa; Kniss, Krista; Nyanseor, Sankan; O'Halloran, Alissa; Rolfes, Melissa; Sessions, Wendy; Dugan, Vivien G; Fry, Alicia M; Wentworth, David E; Stevens, James; Jernigan, Daniel
Source: MMWR Morb Mortal Wkly Rep;68(24): 544-551, 2019 Jun 21.
MEDLINE - International Database for Medical Literature PMID: 31220057
Abstract: Influenza activity* in the United States during the 2018-19 season (September 30, 2018-May 18, 2019) was of moderate severity (1). Nationally, influenza-like illness (ILI)† activity began increasing in November, peaked during mid-February, and returned to below baseline in mid-April; the season lasted 21 weeks,§ making it the longest season in 10 years. Illness attributed to influenza A viruses predominated, with very little influenza B activity. Two waves of influenza A were notable duri (more)
8.

Estimating age-stratified influenza-associated invasive pneumococcal disease in England: A time-series model based on population surveillance data.

Author(s): Chiavenna, Chiara; Presanis, Anne M; Charlett, Andre; de Lusignan, Simon; Ladhani, Shamez; Pebody, Richard G; De Angelis, Daniela
Source: PLoS Med;16(6): e1002829, 2019 06.
MEDLINE - International Database for Medical Literature PMID: 31246954
Abstract: BACKGROUND: Measures of the contribution of influenza to Streptococcus pneumoniae infections, both in the seasonal and pandemic setting, are needed to predict the burden of secondary bacterial infections in future pandemics to inform stockpiling. The magnitude of the interaction between these two pathogens has been difficult to quantify because both infections are mainly clinically diagnosed based on signs and symptoms; a combined viral-bacterial testing is rarely performed in routine clini (more)
9.

Association of influenza outbreak in each nursery school and community in a ward in Tokyo, Japan.

Author(s): Sugishita, Yoshiyuki; Sugawara, Tamie; Ohkusa, Yasushi
Source: J Infect Chemother;25(9): 695-701, 2019 Sep.
MEDLINE - International Database for Medical Literature PMID: 30962116
Abstract: In nursery schools, influenza outbreaks have occurred every year. However, influenza characteristics of its diffusion among nursery schools, within each nursery school, and among classes of different ages in nursery schools remains unclear. This paper presents an examination of these matters using the Nursery School Absenteeism Surveillance System (NSASSy). All nursery schools in ward A in Tokyo introduced to the NSASSy in 2015. The study period was November 2015 through March 2016. The dat (more)
10.

Influenza A (H3) Outbreak at a Hurricane Harvey Megashelter in Harris County, Texas: Successes and Challenges in Disease Identification and Control Measure Implementation.

Author(s): Liu, Leann; Haynie, Aisha; Jin, Sherry; Zangeneh, Ana; Bakota, Eric; Hornstein, Benjamin D; Beckham, Dana; Reed, Brian C; Kiger, Jennifer; McClendon, Michael; Perez, Elizabeth; Schaffer, Michael; Becker, Les; Shah, Umair A
Source: Disaster Med Public Health Prep;13(1): 97-101, 2019 02.
MEDLINE - International Database for Medical Literature PMID: 30841952
Abstract: ABSTRACTWhen Hurricane Harvey landed along the Texas coast on August 25, 2017, it caused massive flooding and damage and displaced tens of thousands of residents of Harris County, Texas. Between August 29 and September 23, Harris County, along with community partners, operated a megashelter at NRG Center, which housed 3365 residents at its peak. Harris County Public Health conducted comprehensive public health surveillance and response at NRG, which comprised disease identification through (more)
11.

Association between meteorological factors, spatiotemporal effects, and prevalence of influenza A subtype H7 in environmental samples in Zhejiang province, China.

Author(s): Lau, Steven Yuk-Fai; Chen, Enfu; Wang, Maggie; Cheng, Wei; Zee, Benny Chung-Ying; Han, Xiaoran; Yu, Zhao; Sun, Riyang; Chong, Ka Chun; Wang, Xiaoxiao
Source: Sci Total Environ;663: 793-803, 2019 May 01.
MEDLINE - International Database for Medical Literature PMID: 30738260
Abstract: BACKGROUND: Human infection with the H7N9 virus has been reported recurrently since spring 2013. Given low pathogenicity of the virus in poultry, the outbreak cannot be noticed easily until a case of human infection is reported. Studies showed that the prevalence of influenza A subtype H7 in environmental samples is associated with the number of human H7N9 infection, with the latter associated with meteorological factors. Understanding the association between meteorological factors and the (more)
12.

Update: Influenza Activity - United States, September 30, 2018-February 2, 2019.

Author(s): Blanton, Lenee; Dugan, Vivien G; Abd Elal, Anwar Isa; Alabi, Noreen; Barnes, John; Brammer, Lynnette; Budd, Alicia P; Burns, Erin; Cummings, Charisse N; Garg, Shikha; Garten, Rebecca; Gubareva, Larisa; Kniss, Krista; Kramer, Natalie; O'Halloran, Alissa; Reed, Carrie; Rolfes, Melissa; Sessions, Wendy; Taylor, Calli; Xu, Xiyan; Fry, Alicia M; Wentworth, David E; Katz, Jacqueline; Jernigan, Daniel
Source: MMWR Morb Mortal Wkly Rep;68(6): 125-134, 2019 Feb 15.
MEDLINE - International Database for Medical Literature PMID: 30763296
Abstract: CDC collects, compiles, and analyzes data on influenza activity and viruses in the United States. During September 30, 2018-February 2, 2019,* influenza activity† in the United States was low during October and November, increased in late December, and remained elevated through early February. As of February 2, 2019, this has been a low-severity influenza season (1), with a lower percentage of outpatient visits for influenza-like illness (ILI), lower rates of hospitalization, and fewer dea (more)
Results  1-12 de 987