An influenza vaccine may be produced by cultivating the viruses in chicken eggs. The viruses are then taken out of the eggs in liquid form and inactivated. After purification, the egg extract that contains the viruses is used as the vaccine. What side-effect can this vaccine cause 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.