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A study on chikungunya outbreak during 2007 in Kerala, south India.
- Source :
-
The Indian journal of medical research [Indian J Med Res] 2009 Mar; Vol. 129 (3), pp. 311-5. - Publication Year :
- 2009
-
Abstract
- Background & Objective: The first chikungunya outbreak occurred in Kerala during 2006 affecting 14 districts, followed by another during May 2007 affecting almost whole of the State. Four of the worst affected districts viz, Pathanamthitta, Idukki, Kottayam and Thrissur were surveyed during 2007 to understand the magnitude of the problem of chikungunya fever, particularly clinical signs and symptoms.<br />Methods: A total of 1265 persons from 310 houses were surveyed door-to-door in 20 different localities representing four affected districts. The history and examination findings from 354 clinically diagnosed chikungunya cases were recorded. The symptoms recorded were fever, headache, myalgia, arthralgia, itch/rash, oedema, eye congestion, eye pain, oral ulcers, distaste, nausea, vomiting and haemorrhage.<br />Results: The major symptoms were fever (100%), headache (97.5%), arthralgia (99.4%) and myalgia (99.4%). A significant difference was observed in oedema, distaste, nausea and headache among different age groups and these symptoms were reported to be lower (12.2-89.8%) in younger age group than in older age group (90.4-100%). No genderwise difference was observed for any of the symptoms. In clinically diagnosed chikungunya cases higher age group (>35 years) found with higher rate of severity with symptoms of oedema, distaste, nausea and headache when compared with lower age group (1-35 yr).<br />Interpretation & Conclusion: Chikungunya invaded Kerala State for the first time in 2006 and continues to be a major vector borne disease in the State. The clinical symptoms in affected cases highlighted high fever, sever myalgia and prolonged arthralgia, with occasional history of skin itch/rash (petechiae).
- Subjects :
- Adolescent
Adult
Alphavirus Infections diagnosis
Animals
Child
Child, Preschool
Female
Humans
India epidemiology
Infant
Male
Middle Aged
Young Adult
Alphavirus Infections epidemiology
Alphavirus Infections transmission
Chikungunya virus
Culicidae virology
Disease Outbreaks statistics & numerical data
Subjects
Details
- Language :
- English
- ISSN :
- 0971-5916
- Volume :
- 129
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- The Indian journal of medical research
- Publication Type :
- Academic Journal
- Accession number :
- 19491425