1. Division of Infectious Diseases, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana , USA
2. Department of Biostatistics and Health Data Science, Indiana University School of Medicine , Indianapolis, Indiana , USA
3. School of Medicine, Department of Medicine, College of Health Sciences, Moi University Eldoret , Eldoret , Kenya
4. Department of Biostatistics and Health Data Science, Indiana University R.M. Fairbanks School of Public Health , Indianapolis, Indiana , USA