World Data Challenges Efficacy Of Vaccine Made By Chinese Company By Maria Godoy Published January 18, 2021 at 5:04 AM EST Facebook Twitter LinkedIn Email Listen • 3:50 Chaideer Mahyuddin / AFP via Getty ImagesAn official has a blood pressure test before receiving the Sinovac vaccine against the Covid-19 coronavirus at Meuraxa Hospital in Banda Aceh on January 15, 2021. Copyright 2021 NPR