TOPSHOT - An asylum seeker camping at El Chaparral crossing port is vaccinated against COVID-19 in Tijuana, Baja California state, Mexico, on the border with the US, on August 3, 2021. - Despite US authorities stating that asylum seekers camping at the border will not receive any special treatment, hundreds of asylum seekers remain at El Chaparral in hope of a policy change. (Photo by Guillermo Arias / AFP)