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Volume 14, Number 10—October 2008

Dispatch

Chikungunya Outbreak, South India, 2006

Prabhdeep Kaur, Manickam Ponniah, Manoj V. Murhekar, Vidya Ramachandran, Ramakrishnan Ramachandran, Hari Kishan Raju, Vanamail Perumal, Akhilesh C. Mishra, and Mohan D. GupteComments to Author 
Author affiliations: National Institute of Epidemiology, Chennai, India (P. Kaur, M. Ponniah, M.V. Murhekar, V. Ramachandran, R. Ramachandran, M.D. Gupte); Vector Control Research Center, Pondicherry, India (H.K. Raju, V. Perumal); National Institute of Virology, Pune, India (A.C. Mishra);

Main Article

Table

Characteristics of chikungunya outbreak in South India, 2005–2006*

Area Mallela, Andhra Pradesh Gowripet, Avadi, Tamil Nadu
Setting Rural Urban
Population
1,965
2,649
Attack rate
Overall 12% (n = 242) 23% (n = 575)
Age, y 5.8%
0–4 2.4% 20%
5–14 3.6% 24%
15–44 12.9% 22.8%
>45 22.2%
Gender 18.9%
M 9.9%
F
14.8%
24.5%
Chikungunya-specific IgM positivity
67% (90/134)
56% (5/9)
Subclinical infection
No. tested 100 in all age groups ND
Age-specific prevalence of IgM antibodies
5–14 y 4% ND
15–44 y 8% ND
>45 y 3% ND

*Ig, immunoglobulin; ND, not done.

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