Acknowledgments
Special thanks to AFRIMS staff for technical support.
Financial support for travel was obtained through
the US Department of Defense, Global Emerging
Infections Surveillance and Response System, Overseas
Tropical Medicine Training Program. This study was
exempt from Human Investigation Committee review
under the following part of the US federal regulations:
45 CFR Part 46.101(b)(4). This study is not a clinical
trial and does not need to be registered.
Declaration of Interests
The authors state they have no conflicts of interest to
declare.