5 April 2022. Viet Nam will begin issuing vaccine passports from April 15. According to the Ministry of Foreign Affairs, it has reached agreements on the mutual recognition of ‘vaccine passports’ with 17 countries, including Cambodia.https://www.khmertimeskh.com/501052923/viet-nam-to-issue-vaccine-passports-from-april-15-cambodia-among-first-17-to-recognise/