Miami Democratic Rep. Donna Shalala introduced legislation Tuesday that would require health insurers to cover the full costs of coronavirus tests for any American who has health insurance through their employer, or who has purchased an Obamacare plan. Shalala’s bill, the Covering Coronavirus Test Act of 2020, adds the coronavirus test to the Affordable Care Act’s list of preventive health services that insurers are required to cover at no cost to patients.