Fig. 4
From: Identification and phylogenetic analysis of two canine coronavirus strains
Detection of CCoV under electron microscopy. a, Negative staining of CCoV particles from CCoV JS1706-infected cell culture supernatant. The red arrow indicates corona spikes of CCoV particles. Scale bar, 100 nm. b, Ultrathin sections of A-72 cells infected with CCoV JS1712 24 h post infection. The red double arrow indicates virions present in the inclusion bodies in cytoplasm. Scale bar, 1 μm