Zanzibar's Minister of Trade and Industrial Development Omar Said Shaaban (L) and Chinese Consul General in Zanzibar Zhang Zhisheng attend the handover ceremony of the COVID-19 vaccines at the Abeid Amani Karume International Airport in Zanzibar, Tanzania, on July 31, 2021. Tanzania's Zanzibar on Saturday received a batch of Sinovac COVID-19 vaccines and syringes donated by China. (Photos: Xinhua)

Photo taken on July 31, 2021 shows China-donated COVID-19 vaccines arriving at the Abeid Amani Karume International Airport in Zanzibar, Tanzania. Tanzania's Zanzibar on Saturday received a batch of Sinovac COVID-19 vaccines and syringes donated by China.

Workers prepare to transfer China-donated COVID-19 vaccines at the Abeid Amani Karume International Airport in Zanzibar, Tanzania, on July 31, 2021. Tanzania's Zanzibar on Saturday received a batch of Sinovac COVID-19 vaccines and syringes donated by China.