17. Viruses
Viruses
Multiple Choice
Multiple ChoiceWhy can flare-ups of herpesvirus infection recur throughout a person's life?
A
The herpesvirus becomes a prophage during the lysogenic cycle of the infection, so the viral genome is recombined with the host DNA.
B
Herpesvirus is very common in the environment, so it is easy for a person to become re-infected.
C
Herpesvirus may cloak itself in a cell's nuclear envelope, making it very difficult for the immune system to recognize it.
D
The herpesvirus always kills its host cell when it leaves. Cycles of cell death cause the recurring flare-ups.
E
Herpesvirus can leave its DNA behind as minichromosomes in nerve cell nuclei. Stress can trigger another round of virus production, producing characteristic blisters and sores.
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