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. 2014 May 30;13:206. doi: 10.1186/1475-2875-13-206

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Copyright © 2014 Ruiz et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Plasmodium falciparum malaria and climate in Kericho District, Kenyan highlands. (A) Historical monthly malaria positive cases observed in Tea Plantation 1 over the period spanning January, 1970 to October, 2004. (B) and (C) Annual cycles of rainfall (grey bars in panel B), minimum temperature (grey bars in panel C), and maximum temperature (black solid line in panel C) observed over the period 1979–2009. Error bars depict the confidence intervals for a 0.05 significance level. The total annual rainfall amount and its confidence interval for a 95% confidence level are presented on the top left hand side of panel B. The average minimum and maximum annual temperatures and their confidence intervals are presented on the bottom left-hand side and bottom right-hand side of panel C. See also the P. falciparum malaria incidence (black solid line in panel B), based on the historical monthly malaria positive cases (presented in panel A).