Ahmed Abade Mohamed, Joseph Oundo, Samuel M. Kariuki, Hamadi I. Boga, Shanaz K. Sharif, Willis Akhwale, Jared Omolo, Anyangu S. Amwayi, David Mutonga, David Kareko, Mercy Njeru, Shan Li, Robert F. Breiman, and O. Colin Stine 

Author affiliations: Field Epidemiology and Laboratory Training Program, Nairobi, Kenya (A.A. Mohamed, J. Oundo, J. Omolo, A.S. Amwayi); Ministry of Public Health and Sanitation, Nairobi (A.A. Mohamed, S.K. Sharif, W. Akhwale, J. Omolo, A.S. Amwayi, D. Mutonga, M. Njeru); Centers for Disease Control and Prevention, Nairobi (J. Oundo, R.F. Breiman); Kenya Medical Research Institute, Nairobi (J. Oundo, S.M. Kariuki); Jomo Kenyatta University of Agriculture and Technology, Nairobi (H.I. Boga, D. Kareko); University of Maryland School of Medicine, Baltimore, Maryland, USA (S. Li, O.C. Stine)