1. Thailand Ministry of Public Health–U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand.
2. Division of Global Health Protection, Centers for Disease Control and Prevention, Atlanta, Georgia.
3. University Hospital Institute for Infectious Diseases and Tropical Medicine, National Reference Centre for Rickettsioses, Aix-Marseille University, Marseille, France.
4. Bill & Melinda Gates Foundation, Seattle, Washington.
5. Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
6. Division of Infectious Disease, Emory University, Atlanta, Georgia.