WUHAN, CHINA - JULY 18: (CHINA OUT) The COVID-19 virus model on display at the "Enlightenment Of COVID-19" science exhibition on July 18, 2021 in Wuhan, Hubei Province, China.  The exhibition aims to explain the unique life form of the coronavirus and the thinking behind China's fight against the epidemic, as well as exploring ways to achieve a long-term coexistence with virus. With no recorded cases of COVID-19 community transmissions since May 2020, life for residents in Wuhan is gradually returning to normal. (Photo by Getty Images)