Other vaccinations are also given three times (second dose after a short interval, third dose after a longer interval), so it might well be that this vaccine turns out to be one of those, we just do not know. That’s the point.
Other vaccinations are also given three times (second dose after a short interval, third dose after a longer interval), so it might well be that this vaccine turns out to be one of those, we just do not know. That’s the point.