The Food and Drug Administration has approved the first at-home coronavirus testing kit that does not require sending samples to a laboratory.The new test was developed by Lucira Health and can return results in just 30 minutes without having to send the test to a lab. The test will be available to those with a prescription, and users will have to take a nasal swab from both nostrils and then place it in a vial of chemicals, which they must swirl around. The vial is then inserted into a portable device that will process the sample. Within 30 minutes, it will provide the results. Lucira Health estimates that the testing kit will cost $50.Health care providers will have to report the results to public health authorities.