Mexico City, Mexico. 27th Feb, 2021. Staff members unload temperature-controlled cargo containers with COVID-19 vaccines from Chinese company Sinovac at Mexico International Airport in Mexico City, Mexico, Feb. 27, 2021. The second shipment of COVID-19 vaccines from Chinese company Sinovac arrived in Mexico City on Saturday. Credit: Xin Yuewei/Xinhua/Alamy Live News Stock Photo