I read about this the other day. I think it had something to do with a magnet sticking to your arm after the jab, but the black lights are to light up the arms to find those who've had the jab and then those who haven't had the jab. Just another way to locate the anti-vaxxers.
I read about this the other day. I think it had something to do with a magnet sticking to your arm after the jab, but the black lights are to light up the arms to find those who've had the jab and then those who haven't had the jab. Just another way to locate the anti-vaxxers.