1 Philadelphia FIGHT Community Health Centers, Philadelphia, PA, USA; Division of Infectious Diseases, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
2 Division of Pediatric Infectious Diseases, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA; Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. Electronic address: ravi.jhaveri@northwestern.edu.