The first case of a COVID-19 variant first detected in the U.K. was reported in Maine on Wednesday.

The Maine CDC said the variant known as B.1.1.7 was detected in a Franklin County resident who had recently traveled internationally. That individual and members of their household who tested positive are isolating.

The U.S. had reported 932 cases of the variant in 34 states as of Tuesday.

“We recognize the concern this case may cause, given that the B.1.1.7 variant appears to spread more easily,” said Dr. Nirav D. Shah, Director of the Maine CDC. “Given the number of cases already detected in other states, we expected the variant to arrive in Maine and have been on the lookout for it. It is more important than ever that Maine people remain vigilant in taking the steps that prevent the spread of COVID-19 — wearing face coverings, staying at least 6 feet apart, avoiding gatherings, and washing hands frequently.”

Research indicates that existing vaccines are still effective against the variant.