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Yearly distribution of PRRSV sequences from pig sites with at least one sequence, by region. A total of 4796 PRRSV ORF5 sequences from 1334 pig sites located in 10 administrative regions in Quebec, Canada, were gathered during the study period (2010–2019). A Yearly number of PRRSV sequences submitted by administrative region. B Yearly number of pig sites from which at least one PRRSV sequence was submitted, by administrative region
