Gov. Larry Hogan said Thursday that Maryland would be the first in a 10-state compact to buy large batches of a new kind of rapid coronavirus test for use in nursing homes, prisons and possibly college dorms and other places prone to outbreaks. The purchase of 250,000 rapid antigen tests, at $30 a test, would be paid for with a grant from the U.S. Centers for Disease Control and Prevention… The Becton, Dickinson test, the BD Veritor, has been touted as an improvement to other antigen tests, which have high rates of false negatives and positives.