The country has suffered one of the worst per capita death rates in the world during the epidemic, and its nursing homes have been particularly hard hit.
But even then, Hungary on Saturday jumped the gun on the official roll-out by administering shots to frontline workers at hospitals in the capital Budapest.
Qatar has also granted emergency use authorisation for the COVID-19 vaccine developed by Pfizer and BioNTech, while fellow Gulf Arab state Oman will receive its first Pfizer-BioNTech vaccine shipment on Wednesday.
Sagasti said no direct flights from the United Kingdom had entered the country since December 15, when flights from Europe restarted. But health authorities were monitoring passengers from Britain who had entered through connecting flights, he said.
Much of the world shut its borders to Britain after a significantly more transmissible mutated coronavirus variant was discovered spreading swiftly across southern England.
Azar said he expects the vaccines to be available through more general vaccination approaches, like in pharmacies or doctors' offices, in late February and into March.