Abstract

Chikungunya outbreak in Bueng Kan Province, Thailand, 2013.

Highlights

  • Based on the genome and the viral envelope E1 sequences, chikungunya virus (CHIKV) is classified into 3 genetic lineages: Asian, West African, and East/Central/South African (ECSA) genotypes (2)

  • In Thailand, the first report of CHIKV infection occurred in Bangkok in 1958 (3); later, sporadic cases of chikungunya fever occurred in many provinces during 1976–1995 (4)

  • We report an outbreak of CHIKV infection in the northeastern province of Bueng Kan in 2013

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Summary

Introduction

Based on the genome and the viral envelope E1 sequences, CHIKV is classified into 3 genetic lineages: Asian, West African, and East/Central/South African (ECSA) genotypes (2). In Thailand, the first report of CHIKV infection occurred in Bangkok in 1958 (3); later, sporadic cases of chikungunya fever occurred in many provinces during 1976–1995 (4). All of the CHIKV strains found in Thailand at that time were of the Asian genotype.

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