Airport workers transport packages of China's Sinovac COVID-19 vaccine at the Phnom Penh International Airport in Phnom Penh, Cambodia on June 19, 2021. A plane carrying a new batch of China's Sinovac COVID-19 vaccine arrived in Phnom Penh on Saturday, giving another boost to the kingdom's inoculation drive.

Airport workers transport packages of China's Sinovac COVID-19 vaccine at the Phnom Penh International Airport in Phnom Penh, Cambodia on June 19, 2021. A plane carrying a new batch of China's Sinovac COVID-19 vaccine arrived in Phnom Penh on Saturday, giving another boost to the kingdom's inoculation drive. (Photos: Xinhua)

An airport worker transports packages of China's Sinovac COVID-19 vaccine at the Phnom Penh International Airport in Phnom Penh, Cambodia on June 19, 2021. A plane carrying a new batch of China's Sinovac COVID-19 vaccine arrived in Phnom Penh on Saturday, giving another boost to the kingdom's inoculation drive.