Indonesia set up roadblocks on Monday to screen for COVID-19 among travellers returning from Muslim holidays, as fears rose that mass gatherings and virus variants could trigger a surge of new cases in the world’s fourth most populous nation.
Each year millions of Indonesians fan out across the sprawling archipelago after Ramadan to celebrate Eid al-Fitr and visit extended families, in a tradition known as “mudik”.
To try and avoid mass transmission of the virus, the authorities banned travel between May 6 and 17, during the Eid period, but government data suggests that at least 1.5 million…