Here's why it's possible to dip in and out of herd immunity, and what you can do now to maximize the chances of snuffing out Covid-19

Here's why it's possible to dip in and out of herd immunity, and what you can do now to maximize the chances of snuffing out Covid-19 https://ift.tt/fJo911 If you think herd immunity is the finish line to this pandemic, it's time for a reality check.