As noted earlier the first 38 cases or so of Delta found in North Carolina were contact traced with a direct Florida connection (i.e. these people came from Florida). After this they gave up contact tracing the Delta cases since the volume was increasing greatly.
Who gives a shit what was traced to North Carolina through some contact tracer? Only you.
Indians coming through the southern border almost certainly brought Delta into the country. In numbers far greater than 38 cases. What a joke you are!