Guidance on conducting vaccine effectiveness evaluations in the setting of new SARS-CoV-2 variants: Interim guidance, 22 July 2021. Addendum to Evaluation of COVID-19 vaccine effectiveness
Interim guidance
23 July 2021
| COVID-19: Vaccines
Overview
This addendum to Evaluation of COVID-19 vaccine effectiveness addresses specific issues to consider when evaluating COVID-19 vaccine effectiveness (VE) using observational study designs in the setting of new SARS-CoV-2 variants.
Number of pages
30
Reference numbers
WHO Reference Number: WHO-2019-nCoV-vaccine-effectiveness-variants-2021.1
Copyright
