Danish scientist Peter Ben Embarek, who led the international mission to Wuhan, said a lab employee infected while taking samples in the field falls under one of the likely hypotheses as to how the virus passed from bats to humans.
He told the Danish public channel TV2 that the suspect bats were not from the Wuhan region and the only people likely to have approached them were workers from the Wuhan labs.
Ben Embarek previously acknowledged in an interview with Science magazine that “politics was always in the room with us” during the Wuhan trip, which was mired in delays after China initially stalled approval for the international researchers’ entry.
https://www.france24.com/en/asia-pacific/20210813-china-rejects-who-call-for-renewed-probe-into-origins-of-covid-19
So, it does not have to have been a leak from the Level Four Lab in Wuhan.
It could though, be persons contracted to collect bats in Bat Caves in a different part of China, who became the zero people?