Less than 40% efficacy in lab trials, which means realistically it will be about 0% considering how quickly malaria mutates.

They have many ways to p-hack a vaccine efficacy-

With covid, the vaccinated arm had 6 deaths and the unvaccinated had 1 death. So they changed the endpoint to “did it prevent infection (as determined by pfizer’s dodgy process)”

But the simplest way they fake a reduction in infections- they don’t count you “as vaccinated” until you have the 2nd dose. So I guess 40% of the infected were in this window. Boom - 40% “effective”