[flagged]
That’s “the most up to date and available booster” in many countries.
The boosters since have been often only available to healthcare workers, the elderly, or those with preexisting conditions.
I occasionally read his blog, but "right-wing extremist" would not be one of the words I'd use to describe his content. I know nothing about his following. IIRC he is also vaccinated so not sure where this is headed.