UN Under-Secretary-General: 'Vaccine nationalism' will lead to tragedy

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"Every government, especially the major economies, should take vaccination as a global public good, for helping each other and for helping the global community. And people should change their mentality. This working style, lifestyle will not go back to normal, to the prior to this COVID-19. We have to live in a new reality," said Liu Zhenmin, DESA Under-Secretary-General in an exclusive interview with CGTN's Zou Yue.