I would just like to add that I began my research and development career in France, with the pharmaceutical group Sanofi. Based on that experience, I would invite you to be very careful in raising hopes about vaccines, as we can often do. As long as a vaccine has not been demonstrably perfected and as long as it has not been definitively proven to be effective, the research must go on.
In a nutshell, we must continue to encourage research into a vaccine, with all the difficulties we are aware of, because the anopheles mosquito does not have a simple reproduction cycle. So the vaccine will be as difficult to research and develop as it is for an AIDS vaccine and for other pathologies.
My advice to you remains that, as long as the vaccine has not been definitively discovered, perfected and made effective, we have to continue to put our efforts into prevention. Prevention does not cost a lot.