Which of the following descriptions of inclusion body is false? ()
A. specific formation of inclusion body
B. meaningful to diagnose virus infection
C. nonspecific formation of inclusion body
D. some bacteria infection can cause inclusion body formation
E. none of the above
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The reason that influenza A virus causes pandemic ()
A. the structure of viral antigen is complex
B. antigen drift
C. antigen shift
D. too many types of influenza virus
E. none of the above
Nucleic acid type of enterovirus is ()
A. dsDNA
B. dsRNA
C. ss(+) RNA
D. ss(-)RNA
E. none of the above
Anti-HBs(-), anti-HBc(-), HBeAg(-), HBsAg(+) in the serum, the most likely explanation is ()
A. HBV carriers
B. has already become chronic hepatitis B
C. The serum has infectivity
D. has already recover from hepatitis B
E. none of the above
The epidemic HFRS virus is asscioated with which animal()
A. Rat
B. Cat
C. Dog
D. Pig
E. none of the above
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