When a person is vaccinated, immunity to some pathogens develops. Which effects of vaccination are correct?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only
Biology 9700 · AS & A Level · Proteins
When a person is vaccinated, immunity to some pathogens develops. Which effects of vaccination are correct?