Those provinces include Battambang, Banteay Meanchey, Pailin, Koh Kong, Oddar Meanchey, Pursat and Preah Vihear, health ministry’s secretary of state and spokeswoman Or Vandine said in a statement.

“The move is to fight against COVID-19, particularly the Delta variant, which may spread into our community on a large scale if we all have not taken timely measures to prevent it,” she said.

Vandine said Britain’s AstraZeneca vaccine will be used as the booster shots for those who had already been vaccinated with China’s Sinovac or Sinopharm vaccines in their first two doses.

Cambodian Prime Minister Samdech Techo Hun Sen said that the country decided to mix Sinovac or Sinopharm and AstraZeneca vaccine shots as boosters, meaning that those who had been vaccinated with Sinovac or Sinopharm vaccine would be given AstraZeneca jab as the third dose, and vice versa.

According to chinadailyasia.com