Chikungunya Outbreaks Caused by African Genotype, India

Abstract

Chikungunya fever is reported in India after 32 years. Immunoglobulin M antibodies and virus isolation confirmed the cause. Phylogenic analysis based on partial sequences of NS4 and E1 genes showed that all earlier isolates (1963–1973) were Asian genotype, whereas the current and Yawat (2000) isolates were African genotype.

Keywords

• Chikungunya epidemics
• India
• RT-PCR
• genotypes
• phylogenic analysis
• dispatch