Volunteers from the Blue Sky Rescue Team disinfect at the Qintai Grand Theater in Wuhan, Hubei province—the epicenter of China's Covid-19 outbreak—on April 2, 2020. The global fight against Covid-19 has been enormous, deploying many different tactics. These volunteers work for the Blue Sky Rescue Team, the largest humanitarian NGO in China. As the pandemic has progressed, we have learned more about which measures are most effective. Some may do more to boost public confidence than prevent the spread of the virus.