Pandemic influenza and the avian influenza A (H5N1) threat
Identifieur interne : 000163 ( 1957/Analysis ); précédent : 000162; suivant : 000164Pandemic influenza and the avian influenza A (H5N1) threat
Auteurs : Robert B. Couch [États-Unis]Source :
- Seminars in Pediatric Infectious Diseases [ 1045-1870 ] ; 1998.
English descriptors
- Teeft :
- Animal virus, Antigenic, Asian influenza, Avian, Avian influenza, Avian influenza viruses, Avian origin, Avian virus, Avian viruses, Baylor plaza, Causative virus, Current evidence, Elderly persons, Elsevier science, Equine influenza virus, Hong kong, Hong kong influenza, Hong kong outbreak, Human history, Human infection, Human influenza, Human populations, Human virus, Infection, Influenza, Influenza pandemic, Influenza virus, Influenza viruses, Interpandemic influenza, Mainland china, Major antigenic change, Major increase, Major proportions, Morbidity rates, Outbreak, Pandemic, Pandemic influenza, Public health authorities, Recent hong kong outbreak, Serologic studies, Subtype, Subtypes, Such events, Swine, Virus, Young adults.
Abstract
Clearly documented influenza A pandemics occurred in 1889, 1918, 1957, and 1968. Each pandemic was characterized by a major increase in illnesses and deaths attributable to pneumonia and influenza. Notable were the estimated 500,000 deaths in the United States and 20 million in the world during the 1918 pandemic. Current evidence suggests that the antigenically novel influenza A viruses causing pandemics arise from a reservoir of avian influenza A viruses whereby a virus with a capacity for transmitting and causing illness in humans acquires a new hemagglutinin and neuraminidase surface antigen from an avian virus. An outbreak of human influenza with deaths caused by influenza A (H5N1) viruses emerged in Hong Kong during 1997, but transmission among humans was minimal or absent. Risk for infection was exposure to poultry. Slaughtering all chickens in Hong Kong was accompanied by cessation of the outbreak. Investigations are ongoing to determine if H5N1 viruses are causing infections among humans and poultry in South China. Thus far, the Hong Kong influenza A (H5N1) viruses have lacked the required characteristics for causing a pandemic, but introduction of the virus into human populations emphasizes the continuing threat for another pandemic of influenza.
Url:
DOI: 10.1016/S1045-1870(98)80039-3
Affiliations:
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ISTEX:671273DEE2B35E344179CB27248784A2704BF7DFLe document en format XML
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Couch</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Microbiology & Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Seminars in Pediatric Infectious Diseases</title><title level="j" type="abbrev">YSPID</title><idno type="ISSN">1045-1870</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998">1998</date><biblScope unit="volume">9</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="252">252</biblScope><biblScope unit="page" to="257">257</biblScope></imprint><idno type="ISSN">1045-1870</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1045-1870</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Animal virus</term><term>Antigenic</term><term>Asian influenza</term><term>Avian</term><term>Avian influenza</term><term>Avian influenza viruses</term><term>Avian origin</term><term>Avian virus</term><term>Avian viruses</term><term>Baylor plaza</term><term>Causative virus</term><term>Current evidence</term><term>Elderly persons</term><term>Elsevier science</term><term>Equine influenza virus</term><term>Hong kong</term><term>Hong kong influenza</term><term>Hong kong outbreak</term><term>Human history</term><term>Human infection</term><term>Human influenza</term><term>Human populations</term><term>Human virus</term><term>Infection</term><term>Influenza</term><term>Influenza pandemic</term><term>Influenza virus</term><term>Influenza viruses</term><term>Interpandemic influenza</term><term>Mainland china</term><term>Major antigenic change</term><term>Major increase</term><term>Major proportions</term><term>Morbidity rates</term><term>Outbreak</term><term>Pandemic</term><term>Pandemic influenza</term><term>Public health authorities</term><term>Recent hong kong outbreak</term><term>Serologic studies</term><term>Subtype</term><term>Subtypes</term><term>Such events</term><term>Swine</term><term>Virus</term><term>Young adults</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Clearly documented influenza A pandemics occurred in 1889, 1918, 1957, and 1968. Each pandemic was characterized by a major increase in illnesses and deaths attributable to pneumonia and influenza. Notable were the estimated 500,000 deaths in the United States and 20 million in the world during the 1918 pandemic. Current evidence suggests that the antigenically novel influenza A viruses causing pandemics arise from a reservoir of avian influenza A viruses whereby a virus with a capacity for transmitting and causing illness in humans acquires a new hemagglutinin and neuraminidase surface antigen from an avian virus. An outbreak of human influenza with deaths caused by influenza A (H5N1) viruses emerged in Hong Kong during 1997, but transmission among humans was minimal or absent. Risk for infection was exposure to poultry. Slaughtering all chickens in Hong Kong was accompanied by cessation of the outbreak. Investigations are ongoing to determine if H5N1 viruses are causing infections among humans and poultry in South China. Thus far, the Hong Kong influenza A (H5N1) viruses have lacked the required characteristics for causing a pandemic, but introduction of the virus into human populations emphasizes the continuing threat for another pandemic of influenza.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Texas"><name sortKey="Couch, Robert B" sort="Couch, Robert B" uniqKey="Couch R" first="Robert B." last="Couch">Robert B. Couch</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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