1. Infectious Diseases Section, Department of Medicine, Brooke Army Medical Center, JBSA-Fort Sam , Houston, Texas , USA
2. F. Edward Hébert School of Medicine, Uniformed Services University , Bethesda, Maryland , USA
3. Trainee Health Surveillance, JBSA-Lackland , San Antonio, Texas , USA
4. Trainee Health, JBSA-Lackland , San Antonio, Texas , USA
5. Headquarters U.S. Africa Command, Kelley Barracks , Stuttgart , Germany
6. Biostatistics, San Antonio Uniformed Services Health Education Consortium, JBSA-Fort Sam Houston, Texas , USA