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. 2022 Sep 8;10(5):e02934-22. doi: 10.1128/spectrum.02934-22

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Copyright © 2022 Cui et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

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FIG 1 — Geographical and temporal distribution of the 949 PRRSV-2 genomes from 1991 to 2021. (A) Geographical distribution of the 949 PRRSV-2 strains collected from 11 countries. (B) Annual number of 949 PRRSV-2 strains. Different colors indicate different countries, including China (n = 612), the United States (n = 213), South Korea (n = 11), Denmark (n = 13), Japan (n = 4), Viet Nam (n = 2), Thailand (n = 1), Laos (n = 8), Hungary (n = 1), India (n = 5), and Canada (n = 1). The strains lacking collection date information are included in the “na” column.