Covid-19 booster shot uptake is at all-time low in the US, CNN analysis finds

The pace of people getting Covid-19 vaccine booster shots in the United States has dropped to the lowest it has ever been, and many public health experts are concerned. As of Monday, about 64% of the US population is fully vaccinated against Covid-19 with at least their initial two-dose series, and 28% have received a booster shot. But the pace of booster doses going into arms is the lowest it has been in months -- since the US Centers for Disease Control and Prevention first recommended boosters for seniors and other at-risk adults in September, according to a CNN analysis of CDC data.