Evaluation of the persistence of SARS-CoV-2 (ATCC® VR-1986HK™) on two different food contact materials: flow pack polyethylene and polystyrene food trays [Evaluation of the persistence of {SARS}-{CoV}-2 ({ATCC}{ extregistered} {VR}-1986HK{ exttrademark}) on two different food contact materials: flow pack polyethylene and polystyrene food trays]