Seroprevalence and Risk Factors of Chikungunya Virus Infection in Mayotte, Indian Ocean, 2005-2006: A Population-Based Survey
2008

Chikungunya Virus Infection in Mayotte: A Population-Based Survey

Sample size: 1154 publication 10 minutes Evidence: moderate

Author Information

Author(s): Sissoko Daouda, Moendandze Amrat, Malvy Denis, Giry Claude, Ezzedine Khaled, Solet Jean Louis, Pierre Vincent

Primary Institution: Institut de veille sanitaire, Cellule Interrégionale d'Epidémiologie Réunion et Mayotte, Saint-Denis, La Réunion, France

Hypothesis

What are the seroprevalence and risk factors associated with Chikungunya virus infection in Mayotte?

Conclusion

About 37.2% of the population in Mayotte was infected with Chikungunya virus, with significant associations found between infection and factors like low socioeconomic status and makeshift housing.

Supporting Evidence

  • 37.2% of the population in Mayotte was found to be seropositive for Chikungunya virus.
  • 72.3% of seropositive participants reported symptoms consistent with Chikungunya infection.
  • Risk factors for infection included male gender, low socioeconomic index, and living in makeshift housing.

Takeaway

In Mayotte, many people got sick from a virus called Chikungunya, especially those living in poor conditions. This shows that where you live can affect your health.

Methodology

A household-based cross-sectional serosurvey was conducted using complex multistage cluster sampling to assess seroprevalence and risk factors.

Potential Biases

Potential misclassification of symptomatic cases due to reliance on participant self-reporting.

Limitations

Self-reported symptoms may lead to recall bias, and the socioeconomic status index may not be applicable in other contexts.

Participant Demographics

The sample included 58.8% females and 41.2% males, with a majority having low education levels.

Statistical Information

P-Value

0.03

Confidence Interval

95% CI 33.9–40.5

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0003066

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