Epidemiology of influenza in Lower Saxony during the period 1968–1978 with particular emphasis on subtypes A(H3N2) and A(H1N1) in winter 1977–78
Identifieur interne : 000195 ( 1968/Analysis ); précédent : 000194; suivant : 000196Epidemiology of influenza in Lower Saxony during the period 1968–1978 with particular emphasis on subtypes A(H3N2) and A(H1N1) in winter 1977–78
Auteurs : Hildegard Willers [Allemagne] ; Walter Höpken [Allemagne]Source :
- Medical Microbiology and Immunology [ 0300-8584 ] ; 1979-03-01.
English descriptors
- Teeft :
- Antigenic, Antigenic drift, Clinical course, Distinct subtypes, Excess mortality, February, Federal republic, General population, H6pken, Hannover, Hong kong period, Influenza, Influenza epidemics, Influenza isolation, Influenza surveillance, Influenza virus, Influenza viruses, Laboratory investigations, Laboratory surveillance, Last winter, Lower saxony, Military camps, Older influenza, Other countries, Other years, Outbreak, Public health departments, Saxony, Sickness benefit, Subtype, Subtype subtype, Subtypes, Throat swabs, Willers, Young adults.
Abstract
Abstract: The influenza surveillance in Lower Saxony is based mainly on laboratory investigations, and especially those which involve the isolation of influenza viruses throughout the year. These investigations have provided information on the circulation of influenza viruses and of the antigenic drift during the Hong Kong period which resulted in many different variants. Since the advent of the Hong Kong virus subtype, a high excess mortality was observed only in the winter of 1969–70. In most of the other years there was a low excess mortality which coincided with the circulation of the influenza A viruses in the population. During the last winter 1978, influenza A viruses were not isolated before February. In February and March, the two distinct subtypes H3N2 and H1N1 circulated simultaneously. The influenza A(H1N1) virus attacked only children and young adults whereas the patients infected with influenza A(H3N2) virus ranged over all age groups.
Url:
DOI: 10.1007/BF02123292
Affiliations:
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ISTEX:C1CAC9218D1BD55EC843C79AD7A3435F68BC9574Le document en format XML
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These investigations have provided information on the circulation of influenza viruses and of the antigenic drift during the Hong Kong period which resulted in many different variants. Since the advent of the Hong Kong virus subtype, a high excess mortality was observed only in the winter of 1969–70. In most of the other years there was a low excess mortality which coincided with the circulation of the influenza A viruses in the population. During the last winter 1978, influenza A viruses were not isolated before February. In February and March, the two distinct subtypes H3N2 and H1N1 circulated simultaneously. The influenza A(H1N1) virus attacked only children and young adults whereas the patients infected with influenza A(H3N2) virus ranged over all age groups.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>Basse-Saxe</li></region><settlement><li>Hanovre</li></settlement></list><tree><country name="Allemagne"><region name="Basse-Saxe"><name sortKey="Willers, Hildegard" sort="Willers, Hildegard" uniqKey="Willers H" first="Hildegard" last="Willers">Hildegard Willers</name></region><name sortKey="Hopken, Walter" sort="Hopken, Walter" uniqKey="Hopken W" first="Walter" last="Höpken">Walter Höpken</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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