Of the data and polling I have seen, and there has been extensive work done by WHO and UNICEF as well as the African Union and countries themselves, it appears that it was lack of access to vaccines that allowed misinformation to spread more actively.
I do expect, though, that the portfolio we offer through COVAX will continue to evolve and be much more reliant on mRNA vaccines. I wouldn't expect to see a lot more viral vector distributions, because the demand for those from countries that set their own national immunization goals is shifting away from viral vectors just as has been the case in Canada.