A test to determinecoronavirusimmunity in patients will soon be available, the nation’s leading infectious disease expert said Friday morning.Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases,told CNN that new antibody tests— which show if a person has previously been infected with the coronavirus, and therefore gained some level of immunity — will be ready soon.“Within a week or so, we’re going to have a rather large number of tests that are available,” Fauci said.It remains unclear exactly what kind of immunity a person may have once they recover fr...