The new coronavirus almost certainly originated in the United States, Japanese and Taiwanese epidemiologists and pharmacologists have identified, since this country is the only one with all five types, where the rest may have originated.

In August 2019, there was a wave of pulmonary pneumonia or similar diseases in the United States, which Americans attributed to the "vapor" of electronic cigarettes. But according to the famous Taiwanese scientist, symptoms and conditions could not be explained in this way. He said that he wrote to US officials, pointing out his suspicions about the coronavirus as the likely cause of death. The warnings were ignored.