A health worker of the Indigenous Special Sanitary District of Manaus prepares a dose of Sinovac's CoronaVac coronavirus disease (COVID-19) vaccine at Sao Jose Village in the Indigenous land Rio Urubu from the ethnicity Mura in the Urubu river banks in Itacoatiara, Amazonas state, Brazil, February 13, 2021. Picture taken February 13, 2021. REUTERS/Bruno Kelly