Opinion: New coronavirus variants call for intensified surveillance, control, and vaccination efforts
The Covid-19 virus is evolving rapidly.
That should come as no surprise: RNA-based viruses generate mutations constantly as a result of their error-prone replication. Wherever there are more infections, there are more opportunities for the virus to mutate. For a virus new to a species, as this coronavirus is to humans, some mutations are likely to make it more transmissible.
