Are we ready for the next wave of misinformation about a COVID-19 vaccine?

Pfizer’s announcement this week that it had a 90% effective vaccine against COVID-19 provided a glimpse of the wave of mis- and disinformation that could engulf any effort to bring about broad distribution – and acceptance – of such a vaccine.

The announcement itself was the subject of a conspiracy theory: that it came out after the election so that voters couldn’t give the Trump administration credit for it.

“Miraculous. COVID cured, the very instant the networks called the race for Biden,” tweeted Republican Sen. Ted Cruz of Texas.

Asked...