Moderna's vaccine may not prevent people who catch coronavirus from spreading it to others, the firm's chief scientist has admitted. Neither Pfizer nor Moderna used methods in their vaccine trials that allow them say for sure if their shots prevent transmission. 'They do not show that this vaccine can prevent you from potentially transiently carrying the virus transiently and infecting others.' 'When we start the deployment of this vaccine we will not have sufficient concrete data to prove that this vaccine reduces transmission,' Zaks said. Its trials are ongoing, but the company said Monday that data looks promising that the shot may prevent spread.

Source: Daily Mail November 24, 2020 18:47 UTC