A boy displays his Covishield COVID-19 vaccination certificate in New Delhi, India, Wednesday, Sept. 22, 2021. Travelers and authorities from India and many African countries are furious — and confused — about Britain’s new COVID-19 travel rules, calling them discriminatory. Covishield was added to the U.K.’s list of approved vaccines for travelers on Wednesday, but the group of approved public health bodies remained unchanged — meaning the practical effect of the move is limited. Outrage over Covishield was particularly pointed in India, where the vast majority of people have been vaccinated with the shot. (AP Photo/Manish Swarup)