A-LevelBiologyImmunity9700/12 · Oct/Nov 2017 · Q401 Mark
An influenza vaccine can be made by growing the viruses in chicken eggs. The viruses are extracted in liquid from the eggs and inactivated. The purified egg extract containing the viruses is then used as the vaccine. What is a side-effect of using this vaccine in some people?
AAn auto-immune condition could occur.
BAn immune response to egg antigens could occur.
CThe egg antigens could cause infections.
DThe influenza viruses could cause infections.
✓ Correct answer
B: An immune response to egg antigens could occur.
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