HealthWe may never achieve long-term global herd immunity for COVID. But if we’re all vaccinated, we’ll be safe from the worst by on May 4, 2021May 4, 2021Leave a Comment on We may never achieve long-term global herd immunity for COVID. But if we’re all vaccinated, we’ll be safe from the worst In early 2020, during the first thrashes of the pandemic, we were all talking about herd immunity.