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Genetic, geographical and temporal variation of porcine reproductive and respiratory syndrome virus in Illinois
2000
Journal of General Virology
Porcine reproductive and respiratory syndrome virus (PRRSV) ORF5 gene sequences were generated by RT-PCR from 55 field isolates collected in Illinois and eastern Iowa. Spatial and temporal patterns of genetic variation in the virus were examined on a local geographical scale in order to test the hypothesis that the genetic similarity of PRRSV isolates (measured as their percentage pairwise ORF5 nucleotide similarity) was positively correlated with their geographical proximity. Levels of genetic
doi:10.1099/0022-1317-81-1-171
pmid:10640555
fatcat:j4q2tvjjobbzxfyjdgd5lfwogy