Duration of effectiveness of vaccination against COVID-19 caused by the omicron variant.

Competing Interests: MMH reports research grants from WHO, Coalition for Epidemic Preparedness Innovations (CEPI), Asian Development Bank (ADB), Bill & Melinda Gates Foundation, and Pfizer (all paid to the institution). AB and KKW report research grants from WHO and CEPI paid to the institution. EE reports stock ownership in GlaxoSmithKline. MDK reports research grants from WHO, CEPI, ADB, and Pfizer (all paid to the institution) and consultancy fees from Merck. All other authors declare no competing interests. DRF and MDK contributed equally. All data included were derived from publicly available documents cited in the references. Extracted data are available on request to the corresponding author. The authors alone are responsible for the views expressed in this article and they do not necessarily represent the views, decisions, or policies of the institutions with which they are affiliated.