01680nas a2200205 4500000000100000008004100001653001200042653001400054653001200068653001600080100001500096700001400111700001600125700001400141245009700155856005100252300001400303490000700317520115000324 2017 d10aleprosy10aDetection10aSeasons10aEnvironment1 aRocha ACAA1 aJunger WL1 aDa Cruz WJA1 aIgnotti E00aThe impact of seasonal climate on new case detection rate of leprosy in Brazil (2008–2012) uhttps://leprosyreview.org/article/88/4/53-3542 a533–5420 v883 a

Objective: To examine the impact of climatic seasonality in the new case detection rate of leprosy in Brazil according to geographical regions, climates and biomes over a 5-year period, 2008–2012. Methods: We conducted an ecological study of the monthly new case detection rate of leprosy in spatial aggregation of Brazilian geographical regions, climates and biomes, applying a linear regression models with Poisson function to estimate seasonal rates using January as the reference month. Results: Monthly seasonal patterns of leprosy detection rates were recorded between different geographic regions, biomes and climates, with a predominance of increases in the autumn, in the months of March and May, and in winter in the month of August. Conclusions: The detection rate of leprosy in Brazil has a seasonal pattern with specific variations between geographical regions, climates, and biomes. The highest peaks in the detection rates were observed in May (autumn) and in August (winter). In addition to the supply and accessibility of healthcare services, these patterns, may also be related to cultural and environmental factors.