Multiple Choice
In influenza virus,antigenic shift
A) results from reassortment of genomes when two different strains of flu viruses infect the same cell.
B) results from the accumulation of mutations in HA and NA in a single strain of flu virus.
C) can result in major epidemics or pandemics.
D) results from reassortment of genomes when two different strains of flu viruses infect the same cell and can result in major epidemics or pandemics.
Correct Answer:
Verified
Correct Answer:
Verified
Q22: Diagnosis of West Nile virus infection is
Q23: Colds are common because<br>A)domestic animals serve as
Q24: What is the most likely reason why
Q25: Women of childbearing age should be vaccinated
Q26: The rash associated with German measles is
Q28: Warts or verrucae are caused by the
Q29: The rabies virus is transmitted to humans
Q30: West Nile virus has been detected in
Q31: The reactivated form of chickenpox is called
Q32: Antigenic variation is common in influenza B