This month there have been major virus breakthroughs from Moderna, BioNTech, and Pfizer.
All three announced that their COVID-19 vaccine candidates had passed phase 3 testing.
Dr. Anthony Fauci is the nation's leading expert on COVID-19.
He said that Americans should take the breakthroughs as more reason to combat "COVID fatigue."
At a New York Times conference Fauci said "The cavalry is on the way."
