US Hits COVID-19 Vaccine Milestone: 50 Percent of Adults Fully Vaccinated

A man asks for his photo to be taken while Maryland National Guard Specialist James Truong gives a Moderna COVID-19 vaccine in Wheaton, Md., on May 21, 2021. Chip Somodevilla/Getty Images

The United States this week hit a major milestone in efforts to administer COVID-19 vaccines to the population.

Approximately 50 percent of adults 18 or older as of May 26 have been fully vaccinated against the CCP (Chinese Communist Party) virus, which causes COVID-19, according to federal data.