PPT-Influenza virus Influenza virus

Orthomyxoviridae family of viruses RNA enveloped viruses that make up three genera Influenzavirus A Influenzavirus B Influenzavirus C The type A viruses are the most virulent among the three genetically diverse and infecting human birds and animals. Two funded influenza vaccines. Key campaign messages. 2018 promotional campaign . Eligibility. Influenza - the disease. 2018 vaccines and strains. Precautions and contraindications. Influenza and healthcare workers. an increase in the number of cases of a disease above what is normally expected . science of protecting and improving the health of people and their communities. a preparation that provides a trigger to help the immune system build immunity. PROFF. M BANERJEE. MICRO.. Myxovirus. Myxovirus. for a . gp. of envelop RNA viruses . charecterised. by their ability to adsorb onto . mucoprotrein. receptors on erythrocytes causing . hemagglutination. MD, PhD . General Consideration . Acute viral respiratory illnesses are among the most common of human diseases, accounting for one-half or more of all acute illnesses.. Influenza is an acute respiratory illness caused by infection with influenza viruses. . is caused by specified viruses that are members of the family Orthomyxoviridae and placed in the genus Alphainfluenzavirus ( I nfluenzavirus A or influenza A virus ) . There are seven influenza g RNA virus. of the family . Orthomyxoviridae. that is responsible for the infectious disease . influenza. (or most commonly referred to as flu) in birds, various mammals (such as pigs) and humans. Typically, influenza is characterized by fever, sore throat, chills and other non-specific symptoms, it is a much more severe disease. It is spread around the world in seasonal epidemics and according to World Health Organization, these annual epidemics result in about three to five million cases of severe illness, and about 250 000 to 500 000 deaths.. Guo L, Zhang X, Ren L, Yu X, Chen L, Zhou H, et al. Human Antibody Responses to Avian Influenza A(H7N9) Virus, 2013. Emerg Infect Dis. 2014;20(2):192-200. https://doi.org/10.3201/eid2002.131094. Katia Koelle. Department . of . Biology. Emory University. April 17, 2018. Institute for Disease Modeling. Influenza A/H3N2. Prediction of HA evolution from influenza sequence data. Long history: Bush et al. (1999) . Belser JA, Bridges CB, Katz JM, Tumpey TM. Past, Present, and Possible Future Human Infection with Influenza Virus A Subtype H7. Emerg Infect Dis. 2009;15(6):859-865. https://doi.org/10.3201/eid1506.090072. Xu C, Havers F, Wang L, Chen T, Shi J, Wang D, et al. Monitoring Avian Influenza A(H7N9) Virus through National Influenza-like Illness Surveillance, China. Emerg Infect Dis. 2013;19(8):1289-1292. https://doi.org/10.3201/eid1908.130662. S. Mark Tompkins, PhD. Center for Vaccines and Immunology. Department of Infectious Diseases. March 20, 2017. 1. Linda M. . Stannard. , University of Cape Town. Influenza viruses. 2. Influenza A virus. viruses. . . Swine influenza virus (SIV) is any strain of the . influenza family of viruses. that is . endemic. in . pigs. .. . As of 2009, the known SIV strains include . influenza C. and the subtypes of . Keawcharoen J, van Riel D, van Amerongen G, Bestebroer TM, Beyer WE, van Lavieren R, et al. Wild Ducks as Long-Distance Vectors of Highly Pathogenic Avian Influenza Virus (H5N1). Emerg Infect Dis. 2008;14(4):600-607. https://doi.org/10.3201/eid1404.071016. Keawcharoen J, Oraveerakul K, Kuiken T, Fouchier R, Amonsin A, Payungporn S, et al. Avian Influenza H5N1 in Tigers and Leopards. Emerg Infect Dis. 2004;10(12):2189-2191. https://doi.org/10.3201/eid1012.040759.