Seasonality of viral respiratory infections in Southeast of Brazil: the influence of temperature and air humidity

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dc.contributor.authorGardinassi, Luiz Gustavo [UNESP]
dc.contributor.authorSimas, Paulo Vitor Marques [UNESP]
dc.contributor.authorSalomão, João Batista
dc.contributor.authorDurigon, Edison Luiz
dc.contributor.authorTrevisan, Dirce Maria Zanetta
dc.contributor.authorCordeiro, José Antonio
dc.contributor.authorLacerda, Mauricio Nogueira
dc.contributor.authorRahal, Paula [UNESP]
dc.contributor.authorSouza, Fátima Pereira de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFaculdade de Medicina de São José do Rio Preto (FAMERP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T14:00:44Z
dc.date.available2014-05-20T14:00:44Z
dc.date.issued2012-03-01
dc.description.abstractViruses are the major cause of lower respiratory tract infections in childhood and the main viruses involved are Human Respiratory Syncytial Virus (HRSV), Human Metapneumovirus (HMPV), Influenzavirus A and B (FLUA and FLUB), Human Parainfluenza Virus 1, 2 and 3 (HPIV1, 2 and 3) and Human Rhinovirus (HRV). The purposes of this study were to detect respiratory viruses in hospitalized children younger than six years and identify the influence of temperature and relative air humidity on the detected viruses. Samples of nasopharyngeal washes were collected from hospitalized children between May/2004 and September/2005. Methods of viral detection were RT-PCR, PCR and HRV amplicons were confirmed by hybridization. Results showed 54% (148/272) of viral positivity. HRSV was detected in 29% (79/272) of the samples; HRV in 23.1% (63/272); HPIV3 in 5.1% (14/272); HMPV in 3.3% (9/272); HPIV1 in 2.9% (8/272); FLUB in 1.4% (4/272), FLUA in 1.1% (3/272), and HPIV2 in 0.3% (1/272). The highest detection rates occurred mainly in the spring 2004 and in the autumn 2005. It was observed that viral respiratory infections tend to increase as the relative air humidity decreases, showing significant association with monthly averages of minimal temperature and minimal relative air humidity. In conclusion, viral respiratory infections vary according to temperature and relative air humidity and viral respiratory infections present major incidences it coldest and driest periods.en
dc.description.affiliationUniversidade Estadual Paulista
dc.description.affiliationFaculdade de Medicina de São José do Rio Preto (FAMERP)
dc.description.affiliationUniversidade de São Paulo
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Fis, Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Biol, Ribeirao Preto, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 02/08461-2
dc.description.sponsorshipIdFAPESP: 04/06883-2
dc.format.extent98-108
dc.identifierhttp://dx.doi.org/10.1590/S1517-83822012000100011
dc.identifier.citationBrazilian Journal of Microbiology. Sociedade Brasileira de Microbiologia, v. 43, n. 1, p. 98-108, 2012.
dc.identifier.doi10.1590/S1517-83822012000100011
dc.identifier.fileS1517-83822012000100011.pdf
dc.identifier.issn1517-8382
dc.identifier.lattes7991082362671212
dc.identifier.lattes3313511334783986
dc.identifier.orcid0000-0001-5693-6148
dc.identifier.orcid0000-0002-4731-4977
dc.identifier.scieloS1517-83822012000100011
dc.identifier.urihttp://hdl.handle.net/11449/21458
dc.identifier.wosWOS:000303939800011
dc.language.isoeng
dc.publisherSociedade Brasileira de Microbiologia
dc.relation.ispartofBrazilian Journal of Microbiology
dc.relation.ispartofjcr1.810
dc.relation.ispartofsjr0,630
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectViral Respiratory Infectionsen
dc.subjectHRSVen
dc.subjectHRVen
dc.subjectTemperatureen
dc.subjectRelative Air Humidityen
dc.titleSeasonality of viral respiratory infections in Southeast of Brazil: the influence of temperature and air humidityen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/bjm/paboutj.htm
unesp.author.lattes7991082362671212[8]
unesp.author.lattes3313511334783986[9]
unesp.author.orcid0000-0001-5693-6148[8]
unesp.author.orcid0000-0002-4731-4977[9]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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