About four-fifths of the 43 cases examined occurred in people who had been fully vaccinated, the CDC said. Common symptoms included cough, tiredness and congestion or runny nose.
For Emma Court's latest contributions to The Japan Times, see below:
The highly mutated strain raises new questions about how well existing COVID-19 vaccines will hold up, although it's not yet known whether revamped shots will be needed.
The world needs an easy-to-take COVID-19 treatment. Pfizer Inc.’s and Merck & Co. Inc.’s new pills may be just that. But questions remain about their safety and how well they will work.
Vials full of doses often must be kept in extreme cold, and once opened have to be used quickly, making delivery to smaller, far-flung populations difficult.