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In February 2014, porcine deltacoronavirus (PDCoV) was identified in the United States. We developed a PDCoV real-time reverse transcription PCR that identified PDCoV in 30% of samples tested. Four additional PDCoV genomes from the United States were sequenced; these had ≈99%-100% nt similarity to the other US PDCoV strains.
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Marthaler et al. (2014) studied this question.
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