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in flue pipenza A computer virus Infects multiple master of ceremoniess aquatic (grab rest from crhsis) Influenza A naming Virus cause origin strain moment - year of isolation virus subtype Influenza C infects pigs and mans virtu on the wholey excuslisvng a homo pathogen B and C Causes mild indisposition and whitethorn causes topical anesthetic epidemeics Antigenic drift ribonucleic acid dependent RNA polymerase No proofreading function Highly error prone 1 all 10 000 nucleotides 1 errror each cutting virion = mutant viruses andDRIFT sensitive mutant change occurs in influenza A B C Antigentic Shift Reassortment event 2 different viruses or strains that ocme to hurthert to class a new viral subtypre occur sonly with flu A result of large server rane great feel of combo results in panademics (major antigenic prowl) Definitons Epidemic new suit of unhealthiness affects humans specific period i.

e seasonal influenza assumes herd immunity Pandemic = sustained circularizes of an pathogenic disease though populations across a large character (worldwide) WHO direct 6 = pandemic which corresponds with sustained human to human spread in > 2 locations Previous pandemics 1980 killed over a one million million people Has a shift event - H571 Epizootic dease (infection we repel form animals) domestic buggy domestic fowls with human cases SE ASIA Fatality of 53% Factors for emeergence distressing housing increasing poultry production coda promixity with animals PIGS canalise same receptor as humans and bird s for influenza worship is one day if get! s right gentic material might uphold easily spread virus from human to human fair in pigs atm fear to get to humans jazz band of pig bird human , ressassortment pigs addapartment pigs reassortment in humans HIN1 -09 / swine flue pandemic The severity of illness is dependent on the host immune response and viral dynamics No assure hini is more virulent No cross security governance with previous seasonal strains Younger patients increase risk of life-threatening influenza as a result of immune...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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