Moderna created its shots with the U.S. National Institutes of Health and already had a hint they were working, but said it got the final needed results over the weekend that suggest the vaccine is more than 94% effective.

Of 196 COVID-19 cases so far in its huge U.S. study, 185 were trial participants who received the placebo and 11 who got the real vaccine. The only people who got severely ill — 30 participants, including one who died — had received dummy shots, said Dr. Tal Zaks, the Cambridge, Massachusetts, company’s chief medical officer.

When he learned the results, “I allowed myself to cry for the first time,” Zaks told The Associated Press. “We have already, just in the trial, have already saved lives. Just imagine the impact then multiplied to the people who can get this vaccine.”

Moderna said the shots’ effectiveness and a good safety record so far — with only temporary, flu-like side effects — mean they meet requirements set by the U.S. Food and Drug Administration for emergency use before the final-stage testing is complete. The European Medicines Agency, Europe’s version of FDA, has signaled it also is open to faster, emergency clearance.