Controlling COVID-19 Transmission due to Contaminated Imported Frozen Food and Food Packaging

BACKGROUND The emergence of the coronavirus disease 2019(COVID-19)has been sharply increasing with more than eighty million confirmed cases worldwide(1).It has been contained in China through stringent nonpharmaceutical interventions(2).A combination of strict border control and quarantine measures have effectively prevented the spread of the virus from infected travelers,but the risk of resurgence caused by other routes of transmission(fomite transmission)has been identified in a number of localized outbreaks(3-7).