WHEN he arrived at the Soekarno-Hatta Airport in Tangerang, Banten, on Thursday, December 9, Ardiyanto Pramono immediately faced a COVID-19 officer at the airport’s health check post. That day, he was with his sibling and father, who had been treated for cancer in Singapore. The officer at the post informed Ardi—short for Ardiyanto—that the quarantine hotel he had booked was full.

Only several hours prior, when Ardi was ch