LANDOVER, MARYLAND - MARCH 18: Pharmacist Fedelis Onyimba injects the Moderna COVID-19 vaccine into one of about 200 people who got their shots at First Baptist Church of Highland Park March 18, 2021 in Landover, Maryland. The vaccination site is part of the Maryland Vaccine Equity Task Force's effort to partners with all 24 of Maryland's local health departments to focus coronavirus vaccination efforts on "underserved, vulnerable, and hard-to-reach populations to ensure the equitable delivery of vaccines." (Photo by Chip Somodevilla/Getty Images)
LANDOVER, MARYLAND - MARCH 18: Pharmacist Fedelis Onyimba injects the Moderna COVID-19 vaccine into one of about 200 people who got their shots at First Baptist Church of Highland Park March 18, 2021 in Landover, Maryland. The vaccination site is part of the Maryland Vaccine Equity Task Force's effort to partners with all 24 of Maryland's local health departments to focus coronavirus vaccination efforts on "underserved, vulnerable, and hard-to-reach populations to ensure the equitable delivery of vaccines." (Photo by Chip Somodevilla/Getty Images)

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    Health experts sound alarm as Covid-19 cases surge

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Health experts sound alarm as Covid-19 cases surge

Experts say Covid-19 vaccinations in the US are going extremely well -- but not enough people are yet protected and the country may be at the start of another surge. The US reported a record over the weekend with more than 4 million Covid-19 vaccine doses administered in 24 hours, according to the CDC. CNN's Polo Sandoval reports.

Health experts sound alarm as Covid-19 cases surge

Experts say Covid-19 vaccinations in the US are going extremely well -- but not enough people are yet protected and the country may be at the start of another surge. The US reported a record over the weekend with more than 4 million Covid-19 vaccine doses administered in 24 hours, according to the CDC. CNN's Polo Sandoval reports.