Pace Of Vaccinations On The Rise As Delta Variant Of COVID-19 Becomes Dominant

HOUSTON, TEXAS - AUGUST 03: People spend time at Waterwall park on August 03, 2021 in Houston, Texas. As of mid-April, the Houston Methodist Hospital has identified and treated the Delta variant; a mutation of COVID-19. Houston has seen an upward increase of Delta infections and in recent weeks, COVID-19 Vaccinations administered have significantly increased. More than 856,000 doses were administered on July 30, the highest daily figure since July 3. (Photo by Brandon Bell/Getty Images)