Skip to main content
. 2023 Jan 20;20:13. doi: 10.1186/s12985-023-01961-z

Fig. 1.

Fig. 1

A Assays for PCV2, PDCoV, TGEV, PRRSV, PBoV, PRV, PKV, PEDV, BVDV were performed sequentially. B The 96 h viral culture fluid, which had been domesticated CV777 as a positive control, was examined. C Microscopic observation over 12 generations of blind passage. D Immunofluorescence results were obtained at 24 h of infection (n = 3)