China's Ambassador to the Philippines Huang Xilian (3rd L) and Carlito Galvez (3rd R), the chief implementer of Philippine government's measures to combat COVID-19, are seen with officials from the Philippine government in front of cargos containing Sinovac vaccines in Pasay City, the Philippines, Oct. 24, 2021. China donated another batch of Sinovac CoronaVac vaccines to the Philippines on Sunday to support the country's COVID-19 vaccination campaign. The donation arrived in Manila along with the vaccines of the same brand that the Philippines purchased from China. [Photo by Rouelle Umali/Xinhua]

A staff member transports a cargo containing Sinovac vaccines in Pasay City, the Philippines, on Oct. 24, 2021. China donated another batch of Sinovac CoronaVac vaccines to the Philippines on Sunday to support the country's COVID-19 vaccination campaign. The donation arrived in Manila along with the vaccines of the same brand that the Philippines purchased from China. [Photo by Rouelle Umali/Xinhua]

Staff members transport cargos containing Sinovac vaccines in Pasay City, the Philippines on Oct. 24, 2021. China donated another batch of Sinovac CoronaVac vaccines to the Philippines on Sunday to support the country's COVID-19 vaccination campaign. The donation arrived in Manila along with the vaccines of the same brand that the Philippines purchased from China. [Photo by Rouelle Umali/Xinhua]

Cargos containing Sinovac vaccines are seen in Pasay City, the Philippines on Oct. 24, 2021. China donated another batch of Sinovac CoronaVac vaccines to the Philippines on Sunday to support the country's COVID-19 vaccination campaign. The donation arrived in Manila along with the vaccines of the same brand that the Philippines purchased from China. [Photo by Rouelle Umali/Xinhua]

Cargos containing Sinovac vaccines are seen in Pasay City, the Philippines on Oct. 24, 2021. China donated another batch of Sinovac CoronaVac vaccines to the Philippines on Sunday to support the country's COVID-19 vaccination campaign. The donation arrived in Manila along with the vaccines of the same brand that the Philippines purchased from China. [Photo by Rouelle Umali/Xinhua]