What epidemiologists know about new coronavirus mutations

Variants seen in UK and South Africa are said to be more transmissible

Health experts have now identified at least two new variants of the coronavirus. The Centers for Disease Control and Prevention say both mutate quickly, contributing to concerns over international travel especially during the holiday season. The B-117 variant was first detected in the United Kingdom in November. Researchers say it’s about 70% more transmissible than the virus in the United States. Meanwhile a second, potentially more infectious variant was first identified in South Africa and has now emerged in the United Kingdom.

On Thursday afternoon, Gov. Phil Murphy announced all United Airlines customers with flights originating in the United Kingdom will be required to show proof of a negative COVID-19 test before arriving at Newark Airport.

What do we know about the variants and are they already circulating? Rutgers University epidemiologist and professor of medicine Dr. Stanley Weiss joins Anchor Briana Vannozzi to discuss.