Xinhua News Agency, April 15, the 2023 National Vaccine and Health Conference opened today. Qi Xiaopeng, a researcher at the Chinese Center for Disease Control and Prevention, delivered a keynote speech on novel coronavirus's global prevention and control strategy at the forum. Qi Xiaopeng said that as of April 11, 2023, for travelers holding Chinese passports, starting from Chinese mainland and completing vaccination, a total of 192 countries and regions in the world will no longer be required to provide pre-entry COVID-19 test negative certificates. Morocco is new than last week; 13 countries and regions require a negative test certificate for COVID-19 before entry, but there is no need for isolation after entry. One country requires (Central African Republic) to provide a negative test certificate for COVID-19 before entry and is quarantined after entry, while one country (Ukraine) restricts the entry of Chinese tourists. China's Hong Kong and Macao regions both lifted restrictions on nucleic acid testing before and after entry on April 1.