Ali Mohamed Zaki, professor of microbiology and immunity at the Faculty of Medicine of Ain Shams University, works at a lab in Cairo, Egypt, March 7, 2020. (Xinhua/Wu Huiwo)
Ali Mohamed Zaki, professor of microbiology and immunity at the Faculty of Medicine of Ain Shams University, works at a lab in Cairo, Egypt, March 7, 2020. (Xinhua/Wu Huiwo)