Measles Transmission After the Tsunami in Tamil Nadu, India
Author Information
Author(s): Mohan Arumugam, Murhekar Manoj V, Wairgkar Niteen S, Hutin Yvan J, Gupte Mohan D
Primary Institution: National Institute of Epidemiology (ICMR), Chennai, India
Hypothesis
What is the impact of a tsunami on measles transmission in a population with high vaccination coverage?
Conclusion
Measles virus circulated in Cuddalore district following the tsunami, despite high one-dose vaccination coverage, indicating the need for a second opportunity for measles immunization.
Supporting Evidence
- 101 measles cases were identified in the study.
- 42% of cases in tsunami-affected villages had an onset date within 14 days of the tsunami.
- The attack rates were 1.3 per 1000 in tsunami-affected areas and 1.7 per 1000 in unaffected areas.
Takeaway
Even though many kids got their measles shots, some still got sick after the tsunami, showing we need to give them another chance to get vaccinated.
Methodology
The study involved passive surveillance for measles cases, collection of demographic data, and laboratory confirmation of cases through IgM antibody testing.
Limitations
The study did not examine missed opportunities for measles immunization.
Participant Demographics
Children aged 6 months to 14 years in tsunami-affected and unaffected areas.
Statistical Information
P-Value
p = 0.471
Digital Object Identifier (DOI)
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