Academic stands by research querying Indonesia's claim to be coronavirus-free

Harvard professor Marc Lipsitch says world's fourth most populous country may have missed cases

• Coronavirus - latest updates

A Harvard academic has defended research suggesting a possible underreporting of coronavirus cases in Indonesia, following fierce criticism from the health minister in the world's fourth most populous country, which insists it has no cases.

Professor Marc Lipsitch analysed air traffic out of the Chinese city at the centre of the outbreak in China and suggested in a report last week that Indonesia might have missed cases. On Tuesday the Indonesian health minister Terawan Agus Putranto called the report "insulting" and said the country had proper testing equipment.