試卷名稱:114年 - [無官方正解]114 國立清華大學_碩士班考試入學試題_生命科學院甲組、丁組:微生物學#132956
年份:114年
科目:研究所、轉學考(插大)-微生物學
20. Which of the following is why influenza viruses require constant vaccine updates?
(A) Low replication rates in host cells.
(B) Antigenic drift resulting in changes to hemagglutinin (HA) and neuraminidase (NA).
(C) Assistance to antiviral drugs.
(D) The ability to infect multiple animal species.
(E) Stability of viral RNA in different environments.