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ORIGINAL ARTICLE
Year : 2012  |  Volume : 136  |  Issue : 5  |  Page : 862-867

Trend of dengue virus infection at Lucknow, north India (2008- 2010): A hospital based study


Department of Microbiology, King George's Medical University, Lucknow, India

Correspondence Address:
Amita Jain
Department of Microbiology, King George's Medical University, Lucknow 226 003
India
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Source of Support: None, Conflict of Interest: None


PMID: 23287136

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Background & objectives: Dengue virus (DV) infection has emerged as a major health problem in north India. Here, we report the annual trend of dengue virus infection as seen in Lucknow, Uttar Pradesh, during 2008-2010. Methods: Blood samples from clinically suspected cases of dengue virus infection were collected and history was taken on structured clinical data sheet. All samples were tested for dengue IgM by antibody capture ELISA. Selected samples were tested by conventional RT-PCR for dengue virus RNA. Weather information was continuously recorded from website of world weather information service . Results: There was a gradual increase in number of dengue fever cases with increased occurrence in 2010. Cases referred in January - December 2008 were 398 (54.5% anti DV IgM positive), in January - December 2009 were 599 (51.9% anti DV IgM positive) and in January - December 2010 were 1602 (64.9% anti DV IgM positive). Serotypes circulating in years 2008, 2009 and 2010 were DV-2 & DV-3, DV -1, 2 & 3 and DV-1 and DV-2 respectively. There is no statistical significant correlation between weather data and increasing dengue positive cases. Interpretation & conclusions : Increased cases of dengue fever were seen in 2010, which was not correlated with any change in environmental factors. A change in circulating serotypes was noted.


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