Clinical, pathological and virological responses in chickens inoculated with LP VN/1203/K or LP VN/1203/E and monitored for 14 days piA.

ABirds were euthanized at 14 days pi unless otherwise noted.BIHC = Immunohistochemistry. Positive samples had sparse antigen in the different organs ( = score of 1).CValues within a column with a different superscript minor case letter are significantly different at pDThree of the six birds infected with LP VN/1203/E developed ataxia and torticollis and were euthanased, one at 8 days pi and two at 13 days pi.除非另有说明，所有禽类均于感染后（post infection，简称pi）14天实施安乐死。 BIHC即免疫组织化学（Immunohistochemistry）。 阳性样本在各器官中仅存在少量抗原，对应评分为1分。 C. 同一列中带有不同小写上标字母的数值组间差异具有统计学意义（p<0.05）。 6只感染LP VN/1203/E毒株的禽类中，有3只出现共济失调与斜颈症状并被实施安乐死：其中1只于感染后8天处置，剩余2只于感染后13天处置。