As of Sept. 18, there have been at least 39,000 reported positive cases tied to meatpacking facilities in at least 419 plants in 40 states, and at least 185 reported worker deaths in at least 51 plants in 27 states.

Tracking Covid-19’s impact on meatpacking workers and industry — https://investigatemidwest.org/2020/04/16/tracking-covid-19s-impact-on-meatpacking-workers-and-industry/

And in case you missed this interesting hypothesis…

Our laboratory work has shown that SARS-CoV-2 can survive the time and temperatures associated with transportation and storage conditions associated with international food trade. When adding SARS-CoV-2 to chicken, salmon and pork pieces there was no decline in infectious virus after 21 days at 4°C (standard refrigeration) and –20°C (standard freezing).

Seeding of outbreaks of COVID-19 by contaminated fresh and frozen food — https://doi.org/10.1101/2020.08.17.255166 (This article is a preprint and has not been certified by peer review) — https://www.biorxiv.org/content/10.1101/2020.08.17.255166v1.full#disqus_thread

I will keep an eye open for other studies that either confirm or dismiss the findings of this study.