A picture taken on March 29, 2021, shows the new passenger terminal of Bahrain International Airport. Bahrain established diplomatic ties with Israel last year. In Israel and Bahrain, vaccine passports will be entirely digital: a QR code on one’s phone, recognized at both countries’ passport control, according to an Israeli official.

A picture taken on March 29, 2021 shows the new passenger terminal of Bahrain International Airport, south of the Bahraini capital Manama. (Photo by GIUSEPPE CACACE / AFP) (Photo by GIUSEPPE CACACE/AFP via Getty Images)