1. Department of Pediatric Infectious Diseases and Immunology, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
2. Advanced Interdisciplinary Rehabilitation Register (AIRR) – COVID‐19 Working Group, Faculty of Medicine Pontificia Universidad Católica de Chile Santiago Chile
3. Division of Pediatrics, Pontificia Universidad Católica de Chile Hospital Clínico Red Salud UC‐Christus Santiago Chile
4. Department of Pediatrics, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
5. Division of Pediatrics, Pontificia Universidad Católica de Chile Hospital Dr. Sótero del Río Santiago Chile
6. Centro de Responsabilidad de Peditaría Hospital Clínico La Florida Santiago Chile
7. Department of Pediatric Gastroenterology and Nutrition, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
8. Department of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Catolica de Chile Hospital Josefina Martínez Santiago Chile
9. Department of Microbiology Icahn School of Medicine at Mount Sinai New York New York USA