When tests are available for you in your state, Medicare covers and you pay nothing for: Tests to diagnose or aid the diagnosis of COVID-19. Some tests for related respiratory conditions to aid diagnosis of COVID-19 done together with the COVID-19 test. Medicare covers these tests at different locations, including some "parking lot" test sites. Etymology. The name "coronavirus" is derived from Latin corona, meaning "crown" or "wreath", itself a borrowing from Greek κορώνη korṓnē, "garland, wreath". The name was coined by June Almeida and David Tyrrell who first observed and studied human coronaviruses. The word was first used in print in 1968 by an informal group of virologists in the journal Nature to designate the new. Revised: Mar/29/2022 4 • A second booster dose of the Moderna COVID-19 Vaccine may be administered, at least 4 months after receipt of a first booster dose of any authorized or approved COVID-19.