Pfizer COVID-19 vaccine 'very promising' but cold chain issues: WHO - Reuters

Reuters | Nov. 10, 2020, 11:10 a.m. | Original
Pfizer COVID-19 vaccine 'very promising' but cold chain issues: WHO Reuters
Introducing Reuters Professional: Global Intelligence Powering Smart Decisions - Reuters Pfizer COVID-19 vaccine 'very promising' but cold chain issues - WHO - Reuters