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Phylogenetic Analysis of Porcine Circovirus 3 Circulating in Canadian Pigs

Abstract: Phylogenetic analysis of porcine circovirus 3 circulating in Canadian pigs

Introduction: Porcine circovirus 3 (PCV3) has been detected in pigs worldwide and associated with several clinical signs.
Methods: To investigate the genetic diversity of PCV3 strains circulating in Canada, 44 PCV3 positive samples from Saskatchewan (2/44), Manitoba (2/44), Quebec (4/44), Alberta (11/44) and Ontario (25/44) submitted to diagnostic laboratories in Canada between 2019 and 2021 were sequenced and analyzed.
Results: Phylogenetic analysis of capsid genes showed that all of the 44 Canadian strains classified into PCV3a and segregated into seven lineages with common amino acid changes observed at A24V, R27K, N56D, T77S, Q98R, L150I (F) and R168K positions.

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Early Fall Colors | Scenic Ontario Road Trip!

Video: Early Fall Colors | Scenic Ontario Road Trip!

All adventures must come to an end, but not without one more journey! Join The Wandering Shepherds as we say farewell to our cozy Calabogie cottage and take the scenic road trip home to Ewetopia Farms. Our first stop was a breathtaking hydroelectric generating station, framed by cliffs, rushing water, and brilliant fall leaves that seemed to have changed overnight. From there, we meandered along winding backroads through lakes and hills, soaking in the spectacular autumn scenery. This year, the colors seemed to arrive earlier than usual—perhaps due to the summer’s drought? Whatever the reason, it was an unforgettable display of Ontario’s fall beauty. Finally, our holiday drew to a close as we pulled back into Ewetopia Farms, ready to return to the sheep and our daily vlogs. But this trip reminded us how important it is to pause, explore, and appreciate the simple beauty around us.