Science
Why the wait for a vaccine might be longer than you think – ABC News
There are several potential vaccines for coronavirus currently in phase 3 trials, but large scale safety and efficacy testing is far from the only hurdles the vaccines face. The first round of vaccines could have complicated transportation and temperature req…

There are several potential vaccines for coronavirus currently in phase 3 trials, but large scale safety and efficacy testing is far from the only hurdles the vaccines face.
The first round of vaccines could have complicated transportation and temperature requirements, and may have limited effectiveness and side effects.
So are the first available vaccines for COVID-19 the ones we’ll have to just deal with forever? Or could the second round of vaccines be even better?
On today’s show:
* Why …