Ian Haydon helped test Moderna's coronavirus vaccine last year. Now, he's helping test the tweaked version of that vaccine designed to fight a new, more contagious variant.
"A year ago, I tried the Moderna vaccine to see if it was safe. (Spoiler: It is!) Now, on my #COVIDvaccine anniversary, I'm happy to share that I just got a 3rd dose. This booster experiment will reveal if strain-adapted vaccines boost immunity & whether they are safe," Haydon, a communications specialist at the University of Washington, said via Twitter last Saturday.
"It's unclear whether this new tweaked version is even going to be necessary," Haydon told CNN in a telephone interview.
"But it's being developed and tested now so that we have it in hand."