WASHINGTON (AP) — The Senate has passed an unparalleled $2.2 trillion economic rescue package steering aid to businesses, workers and health care systems engulfed by the coronavirus pandemic. The 883-page measure is the largest economic relief bill in U.S. history. The unanimous vote comes despite misgivings on both sides about whether it goes too far or not far enough. It caps days of difficult negotiations as Washington confronted a national challenge unlike it has ever faced. The package is intended as relief for an economy spiraling into recession or worse and a nation facing a grim toll from an infection that’s killed nearly 20,000 people worldwide.