Update: Influenza Activity - United States and Worldwide, May 21-September 23, 2017
| Autor: | Lenee Blanton, David E. Wentworth, Noreen Alabi, Eduardo Azziz-Baumgartner, John Barnes, Lynnette Brammer, Erin Burns, C. Todd Davis, Vivien G. Dugan, Alicia M. Fry, Rebecca Garten, Lisa A. Grohskopf, Larisa Gubareva, Krista Kniss, Stephen Lindstrom, Desiree Mustaquim, Sonja J. Olsen, Katherine Roguski, Calli Taylor, Susan Trock, Xiyan Xu, Jacqueline Katz, Daniel Jernigan |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Gerontology Health (social science) Epidemiology Influenza vaccine viruses Health Toxicology and Mutagenesis 030106 microbiology medicine.disease_cause Global Health H5N1 genetic structure Virus Disease Outbreaks Seasonal influenza 03 medical and health sciences 0302 clinical medicine Influenza A Virus H1N1 Subtype Health Information Management Influenza Human medicine Global health Influenza A virus Humans 030212 general & internal medicine Full Report business.industry Influenza A Virus H3N2 Subtype virus diseases General Medicine Virology Influenza A virus subtype H5N1 United States Influenza B virus Population Surveillance Human mortality from H5N1 Seasons Centers for Disease Control and Prevention U.S business |
| Zdroj: | MMWR. Morbidity and Mortality Weekly Report |
| ISSN: | 1545-861X |
| Popis: | During May 21-September 23, 2017,* the United States experienced low-level seasonal influenza virus activity; however, beginning in early September, CDC received reports of a small number of localized influenza outbreaks caused by influenza A(H3N2) viruses. In addition to influenza A(H3N2) viruses, influenza A(H1N1)pdm09 and influenza B viruses were detected during May-September worldwide and in the United States. Influenza B viruses predominated in the United States from late May through late June, and influenza A viruses predominated beginning in early July. The majority of the influenza viruses collected and received from the United States and other countries during that time have been characterized genetically or antigenically as being similar to the 2017 Southern Hemisphere and 2017-18 Northern Hemisphere cell-grown vaccine reference viruses; however, a smaller proportion of the circulating A(H3N2) viruses showed similarity to the egg-grown A(H3N2) vaccine reference virus which represents the A(H3N2) viruses used for the majority of vaccine production in the United States. Also, during May 21-September 23, 2017, CDC confirmed a total of 33 influenza variant virus |
| Databáze: | OpenAIRE |
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