Exploring logistic challenges of the vaccine rollout in the U.S.

02:21

Amid the global pandemic, there is light at the end of the tunnel.Vaccines for COVID-19 are now available.

They were developed in record time, one of the greatest success stories of modern science.

But administering thevaccines on a mass scale has proved challenging for many countries including the United States.

CGTN’s Karina Huberreports.

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