BBCNEWS BBC News December 18, 2021 03:05:00
The fully vaccinated are doing much better off. the optimum protection is fully vaccinated, plus a boost. so the bottom line of what we've been telling you all along, it is critical to get vaccinated. if you are vaccinated, it is critical for optimum protection to get boosted. we can now speak to dr william schaffner who's a professor of infectious diseases at vanderbilt university medical center. thank you very much for being with us. we have been told omicron is much more transmissible. how much more transmissible. how much more transmissible is it than the previous iterations of coronavirus...