No, it cannot be ruled out by an X-ray.
Simple solution to the pandemic,,,,Make HCQ and Azithromycin OTC drugs so anyone who develops a cough and/or fever can go the nearest drug store and self medicate with the drugs along with Zinc Sulfate with correct dosage within 48 hours of symptoms and pandemic over.,,,,,instead of waiting a few days to get tested and 5 days for the results,,,,if over 60 years of age,,,,you’re dead.
COVID can be determined by death. Dead? Yes COVID.