Appearance of E1: A226V Mutant Chikungunya Virus in Coastal Karnataka, India During 2008 Outbreak

Overview

Journal Virol J

Publisher Biomed Central

Specialty Microbiology

Date 2009 Oct 28

PMID 19857273

Citations 19

Authors

S R Santhosh

Paban Kumar Dash

Manmohan Parida

Mohasin Khan

Putcha V L Rao

Affiliations

Soon will be listed here.

Abstract

Chikungunya has resurged in the form of unprecedented explosive epidemic in 2006 after a long gap in India affecting 1.39 million of persons. The disease continued for the next two consecutive years affecting 59,535 and 64,548 persons during 2007 and 2008 respectively. The 2008 outbreak being the second largest among these three years the information regarding the etiology and the mutations involved are useful for further control measures. Among the 2008 outbreaks the Coastal Karnataka accounts for the 46,510 persons. An in-depth investigation of Chikungunya epidemic of Coastal Karnataka, India, 2008 by serology, virus isolation, RT-PCR and genome sequencing revealed the presence and continued circulation of A226V mutant Chikungunya virus. The appearance of this mutant virus was found to be associated with higher prevalence of vector Aedes albopictus and the geographical proximity of coastal Karnataka with the adjoining Kerala state. This is the first report regarding the appearance of this mutation in Karnataka state of India. The present study identified the presence and association of A226V mutant virus with Chikungunya outbreak in India during 2008.

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