COVID-19 two years on: development and implementation of vaccines against SARS-CoV-2

On the second anniversary of the identification of the causative agent of COVID-19, the npj Vaccines editorial team looks back on two years of uncertainty, but also astounding progress. Here we highlight a few stand out articles, from early calls for new vaccines, through to development of many prototypes and licensed vaccines, and finally looking at new variants, novel immunisations strategies, basic immunology, and inequalities in vaccine uptake.

All articles have undergone npj Vaccines' standard peer review process and have been subject to all of the journal’s standard policies. This includes the journal’s policy on competing interests. The Editors declare no competing interests with the submissions which they have handled through the peer review process. The peer review of any submissions for which the Editors have competing interests is handled by another Editorial Board Member who has no competing interests.

Microscopic coronavirus in blue and green.