By: KDKA-TV News Staff

MONACA (KDKA) — The Shell cracker plant in Monaca says it has expanded COVID-19 testing of workers following the Thanksgiving holiday.

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The onsite testing lab has doubled its capacity and was open Sunday for workers who had traveled out of state.

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The company says that as of Tuesday, there were 77 cases of Coronavirus among their 7,000 workers.

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They sat most of the infections were contracted off of the job site.