Influenza surveillance in Singapore: 1972-86
Prospective laboratory surveillance of influenza viruses has been carried out since 1973 in Singapore. The results indicate that antigenic shift variants caused epidemics at various times of the year over this period, whereas drift variants were associated with a regular increase in incidence during...
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| Veröffentlicht in: | Bulletin of the World Health Organization 1988, Vol.66 (1), p.57-63 |
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| container_title | Bulletin of the World Health Organization |
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| creator | DORAISINGHAM, S GOH, K. T LING, A. E YU, M |
| description | Prospective laboratory surveillance of influenza viruses has been carried out since 1973 in Singapore. The results indicate that antigenic shift variants caused epidemics at various times of the year over this period, whereas drift variants were associated with a regular increase in incidence during the second and fourth calendar quarters. Outbreaks due to influenza A virus occurred every year and to influenza B virus at intervals of 16-24 months. Between outbreaks, viruses belonging to either of the two types could be detected during most months, and certain variants appeared several months before the outbreaks they subsequently caused. The factors that contribute to the seasonal pattern are at present unknown. |
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T ; LING, A. E ; YU, M</creator><creatorcontrib>DORAISINGHAM, S ; GOH, K. T ; LING, A. E ; YU, M</creatorcontrib><description>Prospective laboratory surveillance of influenza viruses has been carried out since 1973 in Singapore. The results indicate that antigenic shift variants caused epidemics at various times of the year over this period, whereas drift variants were associated with a regular increase in incidence during the second and fourth calendar quarters. Outbreaks due to influenza A virus occurred every year and to influenza B virus at intervals of 16-24 months. Between outbreaks, viruses belonging to either of the two types could be detected during most months, and certain variants appeared several months before the outbreaks they subsequently caused. The factors that contribute to the seasonal pattern are at present unknown.</description><identifier>ISSN: 0042-9686</identifier><identifier>EISSN: 1564-0604</identifier><identifier>PMID: 3260142</identifier><identifier>CODEN: BWHOA6</identifier><language>eng</language><publisher>Genève: Organisation mondiale de la santé</publisher><subject>Adolescent ; Adult ; Aged ; Antigenic Variation ; Biological and medical sciences ; Child ; Child, Preschool ; Human viral diseases ; Humans ; Infant ; Infectious diseases ; Influenza A virus - classification ; Influenza, Human - epidemiology ; Influenza, Human - immunology ; Medical sciences ; Middle Aged ; Miscellaneous ; Prospective Studies ; Serotyping ; Singapore ; Tropical medicine ; Viral diseases</subject><ispartof>Bulletin of the World Health Organization, 1988, Vol.66 (1), p.57-63</ispartof><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2491104/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2491104/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,4010,53766,53768</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7625423$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/3260142$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>DORAISINGHAM, S</creatorcontrib><creatorcontrib>GOH, K. T</creatorcontrib><creatorcontrib>LING, A. E</creatorcontrib><creatorcontrib>YU, M</creatorcontrib><title>Influenza surveillance in Singapore: 1972-86</title><title>Bulletin of the World Health Organization</title><addtitle>Bull World Health Organ</addtitle><description>Prospective laboratory surveillance of influenza viruses has been carried out since 1973 in Singapore. The results indicate that antigenic shift variants caused epidemics at various times of the year over this period, whereas drift variants were associated with a regular increase in incidence during the second and fourth calendar quarters. Outbreaks due to influenza A virus occurred every year and to influenza B virus at intervals of 16-24 months. Between outbreaks, viruses belonging to either of the two types could be detected during most months, and certain variants appeared several months before the outbreaks they subsequently caused. The factors that contribute to the seasonal pattern are at present unknown.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Antigenic Variation</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Human viral diseases</subject><subject>Humans</subject><subject>Infant</subject><subject>Infectious diseases</subject><subject>Influenza A virus - classification</subject><subject>Influenza, Human - epidemiology</subject><subject>Influenza, Human - immunology</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Miscellaneous</subject><subject>Prospective Studies</subject><subject>Serotyping</subject><subject>Singapore</subject><subject>Tropical medicine</subject><subject>Viral diseases</subject><issn>0042-9686</issn><issn>1564-0604</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkEtLw0AUhQdRaq3-BCELcWVgXrkz40KQ4qNQcKGuwyS9U0fSSZxpCvrrjRiK3s1ZnI9zuOeATFkBMqdA5SGZUip5bkDDMTlJ6Z0OZySdkIngQJnkU3K1CK7pMXzZLPVxh75pbKgx8yF79mFtuzbidcaM4rmGU3LkbJPwbNQZeb2_e5k_5sunh8X8dpl3nPNt7qTjsgDFaiO0LnSBTlVQCVFb40xlnFJSSQClV9TWmleASA0DKABtgUzMyM1vbtdXG1zVGLbRNmUX_cbGz7K1vvzvBP9WrttdyaVhjMoh4HIMiO1Hj2lbbnyq8ec3bPtUKs1BCUYH8Pxv075i3GfwL0bfpto2Lg7j-LTHFPBioMQ3zwxteg</recordid><startdate>1988</startdate><enddate>1988</enddate><creator>DORAISINGHAM, S</creator><creator>GOH, K. T</creator><creator>LING, A. E</creator><creator>YU, M</creator><general>Organisation mondiale de la santé</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>1988</creationdate><title>Influenza surveillance in Singapore: 1972-86</title><author>DORAISINGHAM, S ; GOH, K. T ; LING, A. 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T</creatorcontrib><creatorcontrib>LING, A. E</creatorcontrib><creatorcontrib>YU, M</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Bulletin of the World Health Organization</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DORAISINGHAM, S</au><au>GOH, K. T</au><au>LING, A. E</au><au>YU, M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influenza surveillance in Singapore: 1972-86</atitle><jtitle>Bulletin of the World Health Organization</jtitle><addtitle>Bull World Health Organ</addtitle><date>1988</date><risdate>1988</risdate><volume>66</volume><issue>1</issue><spage>57</spage><epage>63</epage><pages>57-63</pages><issn>0042-9686</issn><eissn>1564-0604</eissn><coden>BWHOA6</coden><abstract>Prospective laboratory surveillance of influenza viruses has been carried out since 1973 in Singapore. The results indicate that antigenic shift variants caused epidemics at various times of the year over this period, whereas drift variants were associated with a regular increase in incidence during the second and fourth calendar quarters. Outbreaks due to influenza A virus occurred every year and to influenza B virus at intervals of 16-24 months. Between outbreaks, viruses belonging to either of the two types could be detected during most months, and certain variants appeared several months before the outbreaks they subsequently caused. The factors that contribute to the seasonal pattern are at present unknown.</abstract><cop>Genève</cop><pub>Organisation mondiale de la santé</pub><pmid>3260142</pmid><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0042-9686 |
| ispartof | Bulletin of the World Health Organization, 1988, Vol.66 (1), p.57-63 |
| issn | 0042-9686 1564-0604 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2491104 |
| source | MEDLINE; PubMed Central; EZB Electronic Journals Library |
| subjects | Adolescent Adult Aged Antigenic Variation Biological and medical sciences Child Child, Preschool Human viral diseases Humans Infant Infectious diseases Influenza A virus - classification Influenza, Human - epidemiology Influenza, Human - immunology Medical sciences Middle Aged Miscellaneous Prospective Studies Serotyping Singapore Tropical medicine Viral diseases |
| title | Influenza surveillance in Singapore: 1972-86 |
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