Address correspondence to Guiyun Yan, Department of Biological Sciences, State University of New York, Buffalo, NY 14260. E-mail:
Authors’ addresses: Stephen Munga, Emmanuel Mushinzimana, and Andrew K. Githeko, Kenya Medical Research Institute, Kisumu, Kenya, E-mails:
Acknowledgments: We thank Maurice Okonji, Stephen Ajuma, Peter A. Lutiali, Wilberforce Miheso, and Amos Wabwile for technical assistance, and Sarah Gage and anonymous reviewers for valuable suggestions and critics. This paper is published with the permission of the Director of the Kenya Medical Research Institute.
Financial support: This work was supported by National Institutes of Health grants R01 AI-50243 and D43 TW01505.
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