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Pesquisa | Influenza A (H1N1)

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Resultados  1-12 de 1.297
2.

Quadrivalent versus trivalent influenza vaccine: clinical outcomes in two influenza seasons, historical cohort study.

Autor(es): Shasha, D; Valinsky, L; Hershkowitz Sikron, F; Glatman-Freedman, A; Mandelboim, M; Toledano, A; Paran, Y; Ben-Ami, R; Goldman, D
Fonte: Clin Microbiol Infect;26(1): 101-106, 2020 Jan.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31108229
Resumo: OBJECTIVES: The quadrivalent influenza vaccine (QIV) contains two influenza B antigens (one of each B lineage), while the trivalent vaccine (TIV) contains solely one. As a result, a mismatch between the circulating B lineage and the lineage in the TIV occurs frequently. We aimed to compare the frequency of clinically significant outcomes in a large cohort of vaccinees receiving either TIV or QIV. METHODS: Historical cohort study of all inactivated influenza vaccinees (aged 3 years and olde (mais)
3.

Factors associated with adverse outcomes during influenza outbreaks in aged care facilities.

Autor(es): Tennant, Elaine; Fletcher, Stephanie; Kakar, Sheena; Najjar, Zeina; Lord, Heidi; Clark, Penelope; Gupta, Leena
Fonte: Aust N Z J Public Health;44(1): 65-72, 2020 Feb.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31617654
Resumo: OBJECTIVE: To explore factors associated with adverse outcomes during influenza outbreaks in residential aged care facilities. METHODS: A retrospective cohort study of all outbreaks reported to three Sydney metropolitan Public Health Units during 2017. RESULTS: A total of 123 outbreaks affected 1,787 residents and 543 staff. Early notification to a Public Health Unit was associated with shorter outbreak duration (p<0.001; B=0.674). Resident attack rates and resident mortality rates were low (mais)
4.

Identification of coevolution sites and evolution history for neuraminidase of human influenza A viruses.

Autor(es): Guo, Jinyue; Huang, Shujian; Wen, Feng
Fonte: J Infect;80(2): 232-254, 2020 Feb.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31634491
5.

One hundred years ago in 1919: New Zealand's birth reduction shock associated with an influenza pandemic.

Autor(es): Wilson, Nick; Turner, Nikki; Baker, Michael G
Fonte: N Z Med J;132(1507): 57-62, 2019 12 13.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31830017
Resumo: AIM: We aimed to conduct a preliminary analysis of any association between the 1918 influenza pandemic and its impact on birth rates in New Zealand. METHODS: Official data covering the period 1910 to 1930 were sourced from multiple New Zealand Yearbooks. Estimates were made of the size of the natality impacts and estimates made of the potential causes. RESULTS: In 1919 there were 3,756 fewer non-Maori and 239 fewer Maori births than the pre-pandemic year of 1917, with these representing red (mais)
6.

Avian Influenza A Viruses among Occupationally Exposed Populations, China, 2014-2016.

Autor(es): Quan, Chuansong; Wang, Qianli; Zhang, Jie; Zhao, Min; Dai, Qigang; Huang, Ting; Zhang, Zewu; Mao, Shenghua; Nie, Yifei; Liu, Jun; Xie, Yun; Zhang, Baorong; Bi, Yuhai; Shi, Weifeng; Liu, Peipei; Wang, Dayan; Feng, Luzhao; Yu, Hongjie; Liu, William J; Gao, George F
Fonte: Emerg Infect Dis;25(12): 2215-2225, 2019 12.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31742536
Resumo: To determine the seroprevalence and seroconversion of avian influenza virus (AIV) antibodies in poultry workers, we conducted a seroepidemiologic study in 7 areas of China during December 2014-April 2016. We used viral isolation and reverse transcription PCR to detect AIVs in specimens from live poultry markets. We analyzed 2,124 serum samples obtained from 1,407 poultry workers by using hemagglutination inhibition and microneutralization assays. We noted seroprevalence of AIV antibodies fo (mais)
7.

Laboratory-Confirmed Avian Influenza A(H9N2) Virus Infection, India, 2019.

Autor(es): Potdar, Varsha; Hinge, Dilip; Satav, Ashish; Simões, Eric A F; Yadav, Pragya D; Chadha, Mandeep S
Fonte: Emerg Infect Dis;25(12): 2328-2330, 2019 12.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31742537
Resumo: A 17-month-old boy in India with severe acute respiratory infection was laboratory confirmed to have avian influenza A(H9N2) virus infection. Complete genome analysis of the strain indicated a mixed lineage of G1 and H7N3. The strain also was found to be susceptible to adamantanes and neuraminidase inhibitors.
9.

Historical H1N1 Influenza Virus Imprinting Increases Vaccine Protection by Influencing the Activity and Sustained Production of Antibodies Elicited at Vaccination in Ferrets.

Autor(es): Francis, Magen E; McNeil, Mara; Dawe, Nicholas J; Foley, Mary K; King, Morgan L; Ross, Ted M; Kelvin, Alyson A
Fonte: Vaccines (Basel);7(4)2019 Sep 28.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31569351
Resumo: Influenza virus imprinting is now understood to significantly influence the immune responses and clinical outcome of influenza virus infections that occur later in life. Due to the yearly cycling of influenza viruses, humans are imprinted with the circulating virus of their birth year and subsequently build a complex influenza virus immune history. Despite this knowledge, little is known about how the imprinting strain influences vaccine responses. To investigate the immune responses of the (mais)
10.

Improved survival rates in patients with H1N1 acute respiratory failure in Korea between 2009 and 2016.

Autor(es): Choi, Hayoung; Ko, Ui Won; Lee, Hyun; Hong, Sang-Bum; Chung, Chi Ryang
Fonte: PLoS One;14(10): e0223323, 2019.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31581263
Resumo: There was a pandemic of influenza A (H1N1) in 2009; in Korea, there was also an H1N1 epidemic in 2016. We aim to investigate whether survival had improved in the setting of recent advances in intensive care unit (ICU) management. We conducted a retrospective analysis of acute respiratory failure patients with H1N1 influenza pneumonia in 2016 and 2009 respectively at two tertiary referral hospitals in Korea. A total of 28 patients were treated in 2016, and 34 in 2009. There was no significan (mais)
11.

Seasonal Influenza and Avian Influenza A(H5N1) Virus Surveillance among Inpatients and Outpatients, East Jakarta, Indonesia, 2011-2014.

Autor(es): Lafond, Kathryn E; Praptiningsih, Catharina Y; Mangiri, Amalya; Syarif, Misriyah; Triada, Romadona; Mulyadi, Ester; Septiawati, Chita; Setiawaty, Vivi; Samaan, Gina; Storms, Aaron D; Uyeki, Timothy M; Iuliano, A Danielle
Fonte: Emerg Infect Dis;25(11): 2031-2039, 2019 11.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31625837
Resumo: During October 2011-September 2014, we screened respiratory specimens for seasonal and avian influenza A(H5N1) virus infections among outpatients with influenza-like illness and inpatients with severe acute respiratory infection (SARI) in East Jakarta, an Indonesia district with high incidence of H5N1 virus infection among poultry. In total, 31% (1,875/6,008) of influenza-like illness case-patients and 15% (571/3,811) of SARI case-patients tested positive for influenza virus. Influenza A(H1 (mais)
12.

M2e-based universal influenza vaccines: a historical overview and new approaches to development.

Autor(es): Mezhenskaya, Daria; Isakova-Sivak, Irina; Rudenko, Larisa
Fonte: J Biomed Sci;26(1): 76, 2019 Oct 19.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31629405
Resumo: The influenza A virus was isolated for the first time in 1931, and the first attempts to develop a vaccine against the virus began soon afterwards. In addition to causing seasonal epidemics, influenza viruses can cause pandemics at random intervals, which are very hard to predict. Vaccination is the most effective way of preventing the spread of influenza infection. However, seasonal vaccination is ineffective against pandemic influenza viruses because of antigenic differences, and it takes (mais)
Resultados  1-12 de 1.297