Xinnuo Lei

From PCV1 to “PCV5”: Genetic Diversity, Evolutionary Dynamics, and Host Adaptation of Porcine Circoviruses

Porcine circoviruses (PCVs) are among the smallest animal viruses that replicate autonomously. What began in 1974 as a single cell culture contaminant, PCV1, now counts five members, PCV1 to PCV5. The newest of these, PCV5, was reported in 2025. Its genome is larger than those of...