Vanderbilt University - Department of Pediatrics, University of Pittsburgh - UPMC Children’s Hospital of Pittsburgh, University of Rochester - School of Medicine and Dentistry, Center for Disease Control and Prevention (China), Yale School of Public Health, Yale University - Institute for Global Health, Center for Disease Control and Prevention (China), Center for Disease Control and Prevention (China), Seattle Children's Research Institute, Cincinnati Children's Hospital Medical Center - Division of Infectious Diseases, Children’s Mercy Hospital, Children’s Mercy Hospital, Baylor College of Medicine and Center for Disease Control and Prevention (China)