GPs demand clarity on 'trigger point' for return of COVID-19 shielding The government's three-tier COVID-19 alert system has left GPs and at-risk patients facing major uncertainty as the pandemic's second wave grows, the BMA has warned. by Nick Bostock Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Need help? Email us Register FREE Limited free articles a month Free email bulletins Register Now Register Now Take a 30-day trial Join MIMS now and pay nothing for the first 30 days Join GPOnline now and pay nothing for the first 30 days Sign Up Sign Up