Seasonality of Human Leptospirosis in Reunion Island and Its Association with Weather Data
Author Information
Author(s): Desvars Amélie, Jégo Sylvaine, Chiroleu Frédéric, Bourhy Pascale, Cardinale Eric, Michault Alain
Primary Institution: Unité Mixte de Recherche Contrôle des Maladies Animales Exotiques et Emergentes (UMR CMAEE), CIRAD, Sainte-Clotilde, La Réunion, France
Hypothesis
Is there a seasonal pattern of human leptospirosis cases in Reunion Island associated with meteorological data?
Conclusion
Leptospirosis has a seasonal distribution in Reunion Island, and meteorological data can help predict the occurrence of the disease.
Supporting Evidence
- 613 cases of leptospirosis were reported between 1998 and 2008.
- 58.56% of cases were diagnosed between February and May.
- A significant correlation was found between cases and rainfall and temperature recorded 2 months prior.
Takeaway
Leptospirosis cases go up during the rainy season, and we can use weather data to predict when people might get sick.
Methodology
A retrospective study analyzed leptospirosis cases from 1998 to 2008 and correlated them with meteorological data using time-series analysis.
Potential Biases
Potential underreporting of cases due to reliance on voluntary reporting from hospitals.
Limitations
Only diagnosed cases are reported, which may underestimate the actual incidence of leptospirosis.
Participant Demographics
The study included human cases reported in Reunion Island over an 11-year period.
Statistical Information
P-Value
p<0.01
Confidence Interval
95% CI
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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