Six in 10 Americans have recently struggled to get hold of rapid at-home tests and more than a third said it was difficult to find an in-person test, according to a Kaiser Family Foundation poll.
On International Holocaust Remembrance Day, Jewish advocacy groups urged anti-vaccine activists to stop using the yellow Star of David and other Holocaust imagery.
While Israeli health officials have recommended that all adults get a second booster shot, other countries, experts, other countries and vaccine makers themselves are torn as to whether another shot is needed.