Percentage initial weight loss in miceinfected with 106TCID50of H7N9 (A/Anhui/1/2013). Data are presented as the average values from two independent experiments ± SD(n =10 per group).
H7N9病毒感染后小鼠存活率和体重减轻情况
Survival rate and body weight changes of the mice inoculated with H7N9 virus
Note: aMice were infected with influenza viruses at a dose of 106TCID50.bViable virus was not detected after three passages in MDCK cells. cCyotpathic effects were observed but TCID50values were less than 0.5.dNP, Not performed.
小鼠肺部炎症变化情况
Inflammatory changes of the lungs in the mice inoculated with H7N9 virus
注:平均炎症病变面积为每只小鼠病变面积的平均值
Note: Mean inflammation area=mean value of the inflammation area of all mice in a group
(A) Hematoxylin and eosin stain (HE) staining of lung tissues from infected mice (100× magnification). (B) Distribution of H7N9 viruses inthe tissues of infected mice as determined by IHC. Representative viral antigen distribution in tissues at 3 dpi is shown. Viral antigens are marked with brown (400× magnification).