Chinese Covid-19 vaccines offer relatively low levels of protection compared with some of their foreign rivals. Here is why China is joining other countries in considering mixing and matching vaccines as a key to overcoming multiple vaccination challenges at once. Illustration: Ksenia Shaikhutdinova

More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Visit the WSJ Video Center: https://wsj.com/video

On Facebook:   / videos  
On Twitter:   / wsj  
On Snapchat: https://on.wsj.com/2ratjSM

#WSJ #Chinavaccine #Chinesevaccine