People who've had the vaccination might still be able to spread the virus. So it's important that, even as the vaccination programme gets well underway, everyone keeps sticking to the current rules on masks and social distancing.
Quote:
"There is a chance you might still get or spread coronavirus even if you have the vaccine.
This means it is important to:
* continue to follow social distancing guidance
* if you can, wear something that covers your nose and mouth in places where it's hard to stay away from other people"
Source:
https://www.nhs.uk/conditions/coronavirus-covid-19/coronavirus-vaccination/coronavirus-vaccine/
Some health professionals have suggested that wearing masks when shopping might need to become normal practice for many years to come.