10 September 2021. Since the vaccination campaign against COVID-19 started in February 10, 2021, to September 9, 2021, a day short of seven months, Cambodia successfully vaccinated a total of 11,385,200 people, including adolescents aged 12 to 17.https://www.khmertimeskh.com/50932753/in-seven-months-cambodia-sucessfully-vaccinates-11385200-people-against-covid-19/