One evening in early April, a makeshift quarantine area at Narita Airport was packed with passengers from abroad who were waiting to get their negative COVID-19 test results checked and take an antigen test.

“I’ve waited for seven hours in total, including the time I waited on the plane,” said a tired-looking woman who had returned from Canada.

A Japanese woman who lives in Hawaii lamented the fact that the process was not digitized. “There were many areas crowded with people, and I was afraid I may get infected,” she said.