Fig. 7
Histopathological lesions in guinea pig lung samples after infection with the four virus strains at 3 dpi for the inoculation group and 5 dpe for the contact group. Guinea pigs were inoculated with 106 EID50/mL of the JS/10, KR/07, MV/12 and CA/09 strains. Each microscopic image represents histopathological pneumonic lesions in the viral inoculation group (-I) at 3 dpi for JS/10 (a), KR/07 (c), MV/12 (e) and CA/09 (g) and in the virus contact group (-C) at 6 dpi (5 dpe) for JS/10 (b), KR/07 (d), MV/12 (f) and CA/09 (h) (X100). The lesion scores of each image was as following: (a) LI: 1 and CH: 2; (b) LI: 1 and CH: 1; (c) LI: 1 and CH: 1;(d) LI: 1 and CH: 1; (e) LI: 3 and CH:3; (f) LI: 2 and CH: 3; (g) LI: 2 and CH: 2;(h) LI: 2 and CH: 1; (i) LI: 0 and CH: 0