New variants of the novel COVID-19 are springing up everywhere, but it is not clear if the viral variants are springing up spontaneously in different parts of the globe according to genetic patterns of development, or are the variants being spread by people who travel by air from one part of the world to another, e.g., is a variant discovered to be infecting a patient in one city proof-positive evidence that the patient has come into contact with an infected carrier who has entered the city from another country?

Or is it possible that the patient is infected by a variant because conditions were perfect for the novel COVID-19 virus to mutate into a variant?

If a variant is discovered in two different patients in two different nations simultaneously, would this prove that the ability of the variants to emerge is primarily caused by genetic mechanisms located in the genetic code of the virus itself?

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