The screenings were implemented after a coronavirus outbreak in Beijing was linked to a seafood market.
People who may have come in contact with the chicken wings, as well as food items stored near the lot, have been tested by health officials in Shenzhen. All of these results came back negative.
China also reported on Wednesday that the coronavirus had been found on packages of shrimp shipped from Ecuador.
COVID-19, which has killed more than 749,000 people worldwide, was first linked to a seafood market in the Chinese city of Wuhan.
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