1. California Institute for Medical Research, San Jose, California;
2. Animal Hospital of Smithson Valley, Spring Branch, Texas;
3. EM Unit, Central Analytical Facilities, Stellenbosch University, Stellenbosch, South Africa;
4. Department of Microbiology, Stellenbosch University, Stellenbosch, South Africa;
5. Centro de Pesquisas René Rachou, FIOCRUZ, Belo Horizonte, Brazil;
6. Division of Cardiology, Department of Medicine, School of Medicine, Stanford University, Stanford, California;
7. School of Medicine, Cardiovascular Institute, Stanford University, Stanford, California;
8. Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California