The investigation found the illness was caused by the spread of norovirus, a virus that often causes gastro and is spread through direct contact with an infected person or ingestion of faeces or vomit particles from an infected person.
It found no reports of gastro symptoms from customers in the store, making it unlikely a sick patron was the cause of the outbreak, and also noted food handlers on site did not provide stool samples for testing.
The report stated there was evidence collected on-site “suggestive of faecal contamination”, and the spread of the virus was most likely a result of a worker carrying the virus.
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