1. Center for Epidemiological Research, Universidad Industrial de Santander-UIS, Bucaramanga, Colombia;
2. Info Vida, Bucaramanga, Colombia
3. Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, Florida;
4. Hospital Universitario del Valle, Cali, Colombia;
5. Instituto Nacional de Salud, Bogotá, Colombia;
6. Department of Pathology, Universidad Industrial de Santander-UIS, Bucaramanga, Colombia;
7. Emerging Viruses and Disease-VIREM, Universidad del Valle, Cali, Colombia;