What were the SARS-CoV-2 seroprevalence estimates for industrial livestock operation workers in the USA for 2021-2022? medrxivpreprint JohnsHopkinsSPH SARSCoV2 COVID19 Seroprevalence USA
By Neha MathurNov 4 2022Reviewed by Aimee Molineux In a recent study posted to the medRxiv* preprint server, researchers measured severe acute respiratory syndrome coronavirus-2 seroprevalence in industrial livestock operation workers of North Carolina, United States , between February 2021 and July 2022.
North Carolina is the second-largest hog and fourth-largest poultry-producing US state; thus, people working in these facilities, their household members, and nearby communities are more prone to respiratory health problems and infectious diseases. Given the limited access to and availability of reverse transcription-polymerase chain reaction testing, SARS-CoV-2 antibody testing could prove an attractive alternative.
SARS-CoV-2-induced antibody prevalence among ILO workers and their household members was as high as 63% compared to participants with no household members working at ILO . These findings highlight a higher SARS-CoV-2 transmission among meatpacking facility workers and their nearby communities. However, the authors did not observe elevated SARS-CoV-2 infection-induced IgG response in their study population.
Living and working in closed, crowded conditions could increase exposure to SARS-CoV-2 from household members and coworkers. Thus, participants with more than one person per household bedroom had a higher prevalence of SARS-CoV-2 infection-induced IgG. Also, it was higher among Hispanic/Latino and Black individuals than White Americans because of their occupational status disadvantages within specific jobs.
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