Illustration of Herd Immunity via @WorldAndScience:
https://twitter.com/WorldAndScience/status/996916759574843393 …
#FOAMed #FOAMped images made searchable on grepmed:
"herd immunity" -> https://www.grepmed.com/?q=policy pic.twitter.com/oF8Xzf8MQn
2:20 PM - 14 Jun 2018
0 replies
7 retweets
17 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.