Troubled by the number of unvaccinated COVID-19 patients showing up at his hospital, the French doctor logged on to Facebook and uploaded a video urging people to get vaccinated.
He was soon swarmed by dozens, then hundreds, then more than 1,000 hateful messages from an anti-vaccine extremist group known as V_V. The group, active in France and Italy, has harassed doctors and public health officials, vandalized government offices and tried to disrupt vaccine clinics.
