Scientists say a now-dominant strain of the coronavirus appears to be more contagious than original

Scientists have identified a new strain of the coronavirus that has become dominant worldwide and appears to be more contagious than the versions that spread in the early days of the COVID-19 pandemic, according to a new study led by scientists at Los Alamos National Laboratory.

In addition to spreading faster, it may make people vulnerable to a second infection after a first bout with the disease, the report warned.