Workers transfer COVID-19 vaccines from China at Djibouti-Ambouli International Airport in Ambouli town, Djibouti, on March 18, 2021. The first batch of COVID-19 vaccines from China arrived in Djibouti on Thursday. The vaccines, made by Chinese pharmaceutical firm Sinovac, will help the African country's immunization campaign against the pandemic. [Photo/Chinese Embassy in Djibouti/Handout via Xinhua]