The findings and conclusions in this report are those of the authors and do not necessarily reflect the views of the U.S. Centers forDisease Control and Prevention and the Kenyan Government.∗Corresponding author. Tel.: +1 404 956 2024.E-mail address: kpwaters@cdc.gov (K.P. Waters).
1386-5056/$ – see front matter. Published by Elsevier Ireland Ltd
http://dx.doi.org/10.1016/j.ijmedinf.2013.06.004