Well, as we’ve seen, the mRNA covid vaccines were hugely effective during the pandemic. And researchers are working on other mRNA vaccines for infections including flu. These problems are rare, according to an evaluation of adverse outcomes in almost 100 million people who received covid vaccines. Most studies of mRNA vaccines haven’t reported an increase in the risk of Guillain-Barré syndrome, a condition that affects nerves and has been linked to covid vaccines. And then there are the claims that mRNA vaccines don’t have the support of the public.