The hunt for ventilators and other medical supplies consumed the U.S. and Europe on Monday, as new coronavirus infections soared and political paralysis stalled efforts for a quick aid package from Congress. Asian markets and U.S. futures sank as more governments tightened restrictions to fight the pandemic.

Fears grew that densely crowded New York could become one of the world’s biggest coronavirus hot spots, prompting cancelations of everything from play dates to picnics in the park to pickup basketball games. The city’s mayor said hospitals were 10 days away from shortages in “really basic supplies” that seriously endangered both health care workers and patients.