New #COVID19 paper from @PHE_uk
— Meaghan Kall (@kallmemeg) June 24, 2021
Reduction in transmission after vaccination 💉
👉 Likelihood of household transmission was 40-50% lower in households of index cases who were vaccinated >21 days before testing positive than households of unvaxxed caseshttps://t.co/2vMyCc3dgu pic.twitter.com/SJuHGj70af