Dawn said that her injection was "painless" and she was not informed whether she was given the placebo or the vaccine.

Earlier this week, Dr. Anthony Fauci shared that this prospective vaccine is being developed at a speed like never before.

It's "the fastest from the time a virus, a pathogen, was identified to the time it actually goes into a Phase 3 trial, literally in the history of vaccinology in the United States at least, and maybe even throughout the world," he explained during an NIH event on Facebook Live on Monday.

In mid-July, early test results from Phase 1 of the trial reflected potential success, with Fauci calling the trial "very good news."

According to the National Institutes of Health, the vaccine, mRNA-1273, was "generally well tolerated and prompted neutralizing antibody activity in healthy adults."

The vaccine is "designed to induce neutralizing antibodies directed at a portion of the coronavirus 'spike' protein, which the virus uses to bind to and enter human cells," according to a press release.

Phase 2 of the trials began in May, with the third round set to continue into the fall. "We’re going to start the Phase 3 trial in the third or fourth week of July. That is going to take place over the rest of the summer and into the fall. If all goes well and there aren’t any unanticipated bumps in the road, hopefully, we should know whether the vaccine is safe and effective by the end of this calendar year, or the beginning of 2021," Fauci told InStyle.

As of July 30, there have been more than 4.4 million cases of the coronavirus and at least 151,194 deaths, according to recent data from the New York Times.

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