SARS-CoV-2 surrogates can survive on meat merchandise within the fridge or the freezer for as much as 30 days. These findings are revealed in Utilized and Environmental Microbiology, a journal of the American Society for Microbiology.
The analysis was carried out utilizing hen, beef, pork, and salmon, and surrogate viruses with spikes much like these on SARS-CoV-2, as surrogates, stated first creator Emily S. Bailey, Ph.D. The investigators saved the merchandise at each refrigeration (4 levels C, or 39.2 levels F) and freezer temperatures (-20 levels C, or -4 levels F).
“Though you may not retailer meat within the fridge for 30 days, you would possibly retailer it within the freezer for that lengthy,” stated Bailey. “We even discovered that the viruses may very well be cultured after [being frozen for] that size of time.” Bailey is assistant professor, Division of Public Well being, School of Pharmacy and Well being Sciences, Campbell College, Buies Creek, NC.
The investigators undertook this analysis after studying that COVID-19 outbreaks had been occurring in Southeast Asia absent prior group transmission. Stories from these communities “urged that packaged meat merchandise, produced in areas the place SARS-CoV-2 was circulating, might have been the supply of the virus,” stated Bailey. “Our objective was to analyze whether or not or not related viruses might survive on this surroundings.”
The analysis is essential as a result of SARS-CoV-2 can replicate inside the intestine, in addition to within the respiratory tract, stated Bailey.
Within the examine, the investigators used one RNA virus with a lipid envelop, and two animal coronaviruses, murine hepatitis virus, and transmissible gastroenteritis virus as surrogates.
All three viruses have beforehand been used as surrogates for SARS-CoV-2, usually with better reductions of their numbers noticed at refrigeration than at freezing temperatures. The discount in numbers additionally different in keeping with the meals merchandise used.
“Continued efforts are wanted to stop contamination of meals and meals processing surfaces, employee fingers, and meals processing utensils resembling knives,” the investigators wrote. Moreover, “the dearth of, or insufficient disinfection of those meals previous to packaging must be addressed.”
An infection with SARS-CoV-2 by way of pork meat unlikely in keeping with present state of data
Emily S. Bailey et al, Persistence of Coronavirus Surrogates on Meat and Fish Merchandise throughout Lengthy-Time period Storage, Utilized and Environmental Microbiology (2022). DOI: 10.1128/aem.00504-22
Quotation:
Analysis suggests SARS-CoV-2 might survive for a month on refrigerated or frozen meat merchandise (2022, July 11)
retrieved 11 July 2022
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