Ma Minghui (C), head of a medical expert team sent by the Chinese government to Pakistan, hands over a guidance handbook for coronavirus treatment at Pakistan Emirate Military Hospital in Rawalpindi of eastern Pakistan's Punjab province, April 1, 2020. A Chinese medical expert said on Wednesday that prevention work should be the top priority for Pakistan to cope with the increasingly severe COVID-19 epidemic in the country. (Xinhua/Liu Tian)