The anti-virus mechanism of neutralization antibody is ()
A. kill virus directly
B. prevent virus from adsorbing and penetrate into the host cell
C. prevent virus from uncoating
D. prevent virus nucleic acid from transcribing
E. none of the above
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Negri body is indicative character of ()
A. Rabies virus
B. measles virus
C. HIV
D. epidemic B encephalitis virus
E. none of the above
Influenza virus is typed by ()
A. HA
B. nuclear protein and M protein
C. Matrix protein
D. none of the above
The reason that type A influenza virus easily get variation ()
A. HA and NA easily get reassortment
B. HA and NA bind to relevant antibody resulting in variation
C. HA and NA are glycoprotein and not stable
D. HA and NA easily effected by chemical factor
E. none of the above
Koplik spot was helpful for the diagnosis of ()
A. influenza virus
B. measles virus
C. mumps virus
D. cytomegalovirus
E. none of the above
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