USP has developed interesting material on quality and Covid-19. They include an infographic on production standards of Covid-19 vaccines and standards for quality assessment of COVID-19 vaccines. Follow these links for more information: Ensuring quality in monoclonal antibody development and COVID-19 Vaccine Quality Attributes Toolkits.
Another great USP resource is the COVID-19 Vaccine Handling Guides. They have recently been updated to include an international version. The guide includes a Visual Inspection Guide to help identify falsified COVID-19 Vaccines.