BOSTON, APRIL 2, 2020.....In a matter of "weeks and months," as many as 172,000 Massachusetts residents could become infected with the coronavirus and the surge of COVID-19 patients hospitals have been preparing for is now expected to hit sometime between April 10 and April 20, Gov. Charlie Baker said Thursday afternoon.The new projections are the result of a model put together over the last several weeks by public health experts, health care providers, academics and others.