As Southeast Asia wrestles with the rapid spread of the coronavirus, leaders of three countries — Malaysia, the Philippines and Thailand — announced sweeping measures Monday evening to try to slow its progress.
In Malaysia, the newly installed prime minister, Muhyiddin Yassin, banned mass gatherings until the end of March and ordered the closure of schools and universities, houses of worship, most government offices, and businesses except for grocery stores and shops selling necessities.
Meanwhile, the president of the Philippines, Rodrigo Duterte, expanded an existing coronavirus lockdown of Manila, the capital, to the entire island of Luzon, covering 60 million people.
“You have to stay home,” said Mr. Duterte, 74. “You have to contribute to the fight.”
Residents will only be permitted to leave home to buy food, medicine and other basic necessities. He denied that his goal was to enact martial law and said the lockdown was essential to prevent the virus from gaining more ground.
And in Thailand, the prime minister, Prayuth Chan-ocha, called for closing facilities where large numbers of people gather, including entertainment venues, sport stadiums and schools. Closures could begin as early as Wednesday.
In Indonesia, which has been among the slowest to address the virus, the president, Joko Widodo called for Indonesians to isolate themselves.
“Under the circumstances, it’s time for us to work from home, study from home, pray from home,” he said Sunday.
After one of his cabinet ministers tested positive, Mr. Joko declined Monday to disclose his own test results.
Reporting was contributed by Jonathan Martin, Richard C. Paddock, Maya Salam, Neil Vigdor, Patricia Cohen and Jim Tankersley.