Soil has been considered the natural reservoir for the bacterium Burkholderia pseudomallei, which causes melioidosis. We examined 550 melioidosis cases that occurred during a 10-year period in the highly urbanized city of Singapore, where soil exposure is rare, and found that rainfall and humidity levels were associated with disease incidence.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4285244PMC
http://dx.doi.org/10.3201/eid2101.140042DOI Listing

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