MIT researchers create test to predict COVID immunity, Harvard scientists develop test for both virus and antibodiesBOSTON — If you’re wondering how much protection you have from COVID-19, researchers at two local powerhouse universities say they’ve created new tests that will help determine antibody levels. MIT scientists on Tuesday announced they’ve developed a blood test that may predict COVID-19 immunity. The announcement came a day after Harvard researchers said they’ve built a saliva test that detects the presence of both antibodies and the virus. The MIT researchers created a paper test…