Vaccine expiration extension based on international norms: health mini… stockbot 0 152 2021.12.02 23:00 http://vietnamnews.vn/society/1090955/vaccine-expiration-extension-bas… + 4 https://vietnamnews.vn/rss/society.rss + 2 Minister of Health Nguyễn Thanh Long confirmed that Việt Nam did not automatically decide to extend the expiration date of the Pfizer/BioNTech COVID-19 vaccine but based the decision on international norms.