Porcine circovirus 3 in North and South America: Epidemiology and genetic diversity

Porcine circovirus 3 (PCV3) is a recently discovered virus that has been detected in the swine population worldwide. PCV3 infection has been associated with several signs, but its pathogenicity is currently uncertain. This review article aimed to analyse the PCV3 strains that circulate in different countries in North and South America. We demonstrated the main regions of polymorphisms in the capsid protein structure. Furthermore, we found that PCV3 has at least six different lineages circulating in the Americas. Additional studies are required to determine the role of PCV3 in different clinical syndromes and its epidemiology in swine herds in North and South American countries.

Automated summary

PCV3 is a newly discovered virus detected in swine populations worldwide, with uncertain pathogenicity. There are at least six different lineages of PCV3 circulating in North and South American countries. Further studies are needed to determine the role of PCV3 in different clinical syndromes and its epidemiology in swine herds in the Americas.