The world has now completed 2 years of living with COVID-19. In developing nations, especially in Africa, limited vaccine availability has led to high case rates and the emergence of new variants, some of which are more virulent or contagious than wild-type SARS-CoV-2. With the Omicron variant, the pandemic is now transitioning to an epidemic because of widespread natural virus immunity from a less-virulent infection. We may soon have a combined RNA vaccine for annual single immunization for both the influenza virus and COVID-19 … read more