Swedish Vaccine Skepticism Is Latest Obstacle to Herd Immunity

Swedish health authorities acknowledged they need to convert vaccine doubters -- currently just over a quarter of the population -- if they’re to reach enough people to achieve herd immunity.

“I can understand that the acceptance level is fairly low at this point,” Anders Tegnell, Sweden’s state epidemiologist, said in an interview. “It is still a very theoretical question, as we know very little about the vaccines that are in the pipeline, and the general population knows even less.”