GP practices left with unused vaccine after 2015/16 flu season A third of GP practices were left with a larger stock of unused vaccine after the 2015/16 flu season compared with the previous year, a GPonline poll has found. 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