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

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGardinassi, Luiz Gustavo
dc.creatorSimas, Paulo Vitor Marques
dc.creatorSalomão, João Batista
dc.creatorDurigon, Edison Luiz
dc.creatorTrevisan, Dirce Maria Zanetta
dc.creatorCordeiro, José Antonio
dc.creatorLacerda, Mauricio Nogueira
dc.creatorRahal, Paula
dc.creatorSouza, Fátima Pereira de
dc.date2014-05-20T14:00:44Z
dc.date2014-05-20T14:00:44Z
dc.date2012-03-01
dc.date.accessioned2017-04-05T21:23:43Z
dc.date.available2017-04-05T21:23:43Z
dc.identifierBrazilian Journal of Microbiology. Sociedade Brasileira de Microbiologia, v. 43, n. 1, p. 98-108, 2012.
dc.identifier1517-8382
dc.identifierhttp://hdl.handle.net/11449/21458
dc.identifier10.1590/S1517-83822012000100011
dc.identifierS1517-83822012000100011
dc.identifierWOS:000303939800011
dc.identifierS1517-83822012000100011.pdf
dc.identifierhttp://dx.doi.org/10.1590/S1517-83822012000100011
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/867020
dc.descriptionViruses 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.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherSociedade Brasileira de Microbiologia
dc.relationBrazilian Journal of Microbiology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectViral Respiratory Infections
dc.subjectHRSV
dc.subjectHRV
dc.subjectTemperature
dc.subjectRelative Air Humidity
dc.titleSeasonality of viral respiratory infections in Southeast of Brazil: the influence of temperature and air humidity
dc.typeOtro


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