Virologist Zhang Yongzhen, the first scientist to publish a sequence of the COVID-19 virus, walks down a street in Shanghai, China on Dec. 13, 2020. Zhang was staging a sit-in protest after authorities locked him out of his lab. Zhang wrote in an online post on Monday, April 29, 2024, that he and his team were suddenly notified they were being evicted from their lab, the latest in a series of setbacks, demotions and ousters since he first published the sequence in early January 2020.(AP Photo/Dake Kang)