"Member states of the United Nations" . "G20 nations" . "Chinese-speaking countries and territories" . "East Asian countries" . "COVID-19" . "Occupational safety and health" . "Viral respiratory tract infections" . "Republics" . "Member states of the Shanghai Cooperation Organisation" . "China" . "States and territories established in 1949" . "People's Republic of China" . "Northeast Asian countries" . "One-party states" . "Atheist states" . "BRICS nations" . "Ethnography" . "Communist states" . "Zoonoses" .