Shirlonda Tucker didn’t leave the house much in the past year, and she double-masked when she did. So her positive COVID-19 test came as a shock. “I said, ‘Are you sure, you’re really sure?’” she quizzed the nurse who tested her last month after she began showing symptoms. Cases, hospitalizations and deaths are all down significantly in Maryland from the winter surge, but people continue to get sick — in some cases, very sick. On Tuesday, 442 were hospitalized, 118 in intensive care..