Ministry of Health (Israel) - Public Health Services, Pfizer, Inc., Harvard University - Center for Communicable Disease Dynamics, Pfizer, Inc., Ministry of Health (Israel), Israel Ministry of Health, Yale UniversityMinistry of Health (Israel) - Public Health Services, Sheba Medical Center - Central Virology Laboratory, Sheba Medical Center - Central Virology Laboratory, Sheba Medical Center - Central Virology Laboratory, Chaim Sheba Medical Center - Central Virology Laboratory, Pfizer, Inc. - Vaccines Medical Development & Scientific Affairs, Pfizer, Inc., Pfizer Pharmaceuticals Israel Ltd, Harvard T.H. Chan School of Public Health - Center for Communicable Disease Dynamics, Ministry of Health (Israel) - Public Health Services, Pfizer, Inc. - Vaccines Medical Development & Scientific Affairs, Ministry of Health (Israel) and Ministry of Health (Israel) - Department of Maternal and Child Health

Sheba Medical Center - Central Virology Laboratory, Sheba Medical Center - Central Virology Laboratory, Ministry of Health (Israel), Sheba Medical Center - Gertner Institute for Epidemiology and Health Policy Research, Israel Ministry of Health, Israel Ministry of Health, Sheba Medical Center - Central Virology Laboratory, Ministry of Health (Israel) - Department of Maternal and Child Health, Chaim Sheba Medical Center - The Gertner Institute for Epidemiology & Health Policy Research and Sheba Medical Center - Central Virology Laboratory