Abstract
As the SARS-CoV-2 pandemic ends and we enter into a post-pandemic world, it is the time to reflect on the lessons learned [...].
Grants and funding
This research received no external funding. It is a part of a Special Issue, entitled “Viral Immunogens and Vaccines”, of the journal Microorganisms led by Maria G. Isaguliants, Karl Ljungberg, Karen Kyuregyan, and Juris Jansons as Guest Editors.