View Moderna Covid Vaccine Trial Results Pics. A new covid vaccine developed in the us is even more effective than one produced by pfizer in the uk, new results suggest. In moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect.

Moderna’s COVID-19 vaccine human safety trial results ... from panatimes.com

Moderna's vaccine candidate is considered in the lead among several efforts by drug and vaccine makers in the battle against the deadly virus. Another 15,000 participants were given the vaccine, and only five of them developed. Each participant received a 25, 100 or 250 microgram dose, with 15.

In moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect.

Moderna headquarters in cambridge, mass.credit.maddie meyer/getty images. Experts were quick to point out that the results applied to only eight people out of 45 in the trial. The eagerly awaited data provide a first look at one of the eight vaccines worldwide that have begun human testing. Another 15,000 participants were given the vaccine, and only five of them developed.