Negri body is indicative character of ()
A. Rabies virus
B. measles virus
C. HIV
D. epidemic B encephalitis virus
E. none of the above
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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
All of the followings are common characteristics of enterovirus except ()
A. Belong to picornaviridae
B. Cause outer enteric symptom such as the meningitis
C. The virus propagates in the intestine and presents in the stools
D. Virus genome RNA is not infectious
E. none of the above
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