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Volume 12, Number 10—October 2006

Dispatch

Chikungunya Outbreaks Caused by African Genotype, India

Prasanna Yergolkar*, Babasaheb Tandale*, Vidya Arankalle*, Padmakar Sathe*, Swati Gandhe*, Mangesh Gokhle*, George Jacob*, Supriya Hundekar*, Akhilesh Mishra*Comments to Author , and Sudeep A.B.
Author affiliations: *National Institute of Virology, Pune, India

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Table 2

Results of serologic testing and virus isolation, India, October 2005–March 2006*

State
Karnataka Maharashtra Andhra Pradesh
No. blood samples 900 473 565
Anti-CHIKV IgM, n/N (%) 303/900 (33.7) 169/473 (35.7) 251/565 (44.4)
Anti-dengue IgM, n/N (%) 19/191 (9.9) 23/473 (4.9) 3/325 (0.9)
Anti-CHIKV and anti-dengue IgM, n/N (%) 1/191 (0.5) 2/473 (0.4) 14/325 (4.3)
CHIKV, human serum, n 83 9 20
CHIKV, Aedes aegypti, n 4 11 8

*CHIKV, chikungunya virus; IgM, immunoglobulin M.

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