29.下列有關傳染性華氏囊病病毒特性的敘述，何者錯誤？
(A)血清1型和2型間僅有約30%的抗原相關性
(B)火雞和雞隻均可分離到血清2型病毒株
(C)可用螢光抗體試驗區分2種血清型
(D)高毒力型病毒（vvIBDV）和典型血清1型具抗原相似性

直接節錄原文書+隨便翻翻，原文有斟酌刪減，不過我想大家都看中文

Diseases of Poultry, 13th edition, page 222.

Two serotypes of IBDV, designated as 1 and 2, have been recognized.

目前已辨識出2種IBDV的血清型，就血清1型跟血清2型

IBDV serotypes 1 and 2 share only 30% antigenic relatedness. 

血清1型跟血清2型之間只有30%的抗原相關性

The 2 serotypes are differentiated by VN tests, but not by fluorescent antibody tests or enzyme-linked immunosorbent assay (ELISA).  

這兩種血清型是用(多株抗體交叉)病毒中和試驗去分的，而不是螢光抗體試驗或ELISA

The first isolates of serotype 2 originated from turkeys, but later studies showed that serotype 2 viruses also could be isolated from chickens.

第一株血清2型病毒是從火雞分離出來的，但後來的研究表示雞也可以分離出血清2型

The vvIBDV strains were shown to be mostly antigenically similar to the classic serotype 1 viruses.

高毒力株在抗原性上跟典型血清1型病毒最相似 (，但有一個 modified neutralizing epitope 不一樣)