I explained that while we’ve been trying to create a universal flu vaccine for years without success, similar efforts are ongoing for COVID-19. The SARS-CoV-2 virus, which causes COVID, mutates with each infection, and some of these mutations can evade existing immunity from previous infections or vaccinations, necessitating new solutions. Because immunity from infections and vaccines wanes over time, leading to potential future surges, we need to stay prepared.
John highlighted the promising news (which he was aware of from my recent article) that around 20 next-generation universal COVID vaccines are in preclinical stages, with some already in clinical trials. I clarified that while many preclinical efforts fail, there are several innovative approaches being explored, such as using live weakened adenoviruses, incorporating multiple spike protein genes into mRNA vaccines, and developing self-amplifying mRNA vaccines. These strategies aim to enhance and prolong immunity, offering hope for more effective future protection against COVID-19.
You can listen to my conversation with John Batchelor here
You can find my most recent article on Universal Vaccines here