White House officials today said 50% of Americans have now been fully vaccinated against COVID-19, with immunization levels up 11% from last week, as the nation's Delta (B1617.2) variant activity surges.Vaccination levels improve, studies show impactConcerns over the more transmissible Delta variant and renewed pressure to get people vaccinated have pushed vaccination levels up.
Cyrus Shahpar, the White House's COVID-19 data director, said today on Twitter that vaccination levels have increased 44% over the past 2 weeks.Meanwhile, a new study suggests that vaccination offers higher protection than previous COVID-19 infection, according to findings from Kentucky published today in Morbidity and Mortality Weekly Report (MMWR).Researchers from