Novel H1N1 2009 influenza virus infection in Bangkok, Thailand:effects of school closures

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dc.contributor.authorThaweesak Chieochansinen_US
dc.contributor.authorJarika Makkochen_US
dc.contributor.authorKamol Suwannakarnen_US
dc.contributor.authorSunchai Payungpornen_US
dc.contributor.authorYong Poovorawanen_US
dc.date.accessioned2011-02-15T08:41:02Z
dc.date.available2011-02-15T08:41:02Z
dc.date.created2010-02-11en_US
dc.date.issued2010-02-11en_US
dc.description.abstractBackground: Influenza virus is the major cause of respiratory illness, especially in young and older age groups. Since 1918, many subtypes, defined by hemagglutinine (HA) and neuraminidase (NA), have caused global infections or pandemics. The recently isolated swine origin influenza virus (S-OIV) subtype H1N1 has been defined by the World Health Organization (WHO) as the cause of the present influenza pandemic. Objective: To describe and attempt to predict the epidemiology of the novel H1N1 2009 in Bangkok and to evaluate the effects of school closures during the outbreaks. Materials and methods: The first two human cases infected by this S-OIV subtype H1N1 or H1N1 2009 in Thailand have been reported in May 12, 2009 by the Ministry of Public Health. Between May 12 and July 30, 2009, 1212 nasopharyngeal (NP) swabs from four private hospitals and Chulalongkorn Hospital, Bangkok have been sent to a laboratory for Influenza virus diagnosis. The diagnosis was based on real time RT-PCR for seasonal influenza (H1, H3) and H1N1 2009. Results: One thousand two hundreds and twelve specimens of patients with influenza like illness were tested using real time RT-PCR detection. Between mid June and early July, the number of H1N1 2009 increased rapidly with a high prevalence among the 6- to 20-year olds. School closure policy, long public holiday, and additional preventive measures have led to a rapid reduction in the number of H1N1 2009 positive patients. Conclusion: Preventive measures including school closures are important to slow down the outbreak and thus enable health care centers to cope with the large number of patients. Everyone should play a role in delaying the spread of this pandemic.en_US
dc.identifier.citationAsian Biomedicine (Research Reviews and News); Vol. 3 No. 5 October 2009; 469-475en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/130055
dc.language.isoen_USen_US
dc.publisherAsian Biomedicine (Research Reviews and News)en_US
dc.rightsAsian Biomedicine (Research Reviews and News)en_US
dc.source.urihttps://abm.digitaljournals.org/index.php/abm/article/viewFile/245/164en_US
dc.subjectH1N1en_US
dc.subjectinfluenza virusen_US
dc.subjectswine originen_US
dc.subjectschool closureen_US
dc.subjectThailanden_US
dc.titleNovel H1N1 2009 influenza virus infection in Bangkok, Thailand:effects of school closuresen_US
dc.typeOriginal articleen_US
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