Which of the Following Explain Why the Safety Standards for Vaccines

Multiple Choice

Which of the following explain why the safety standards for vaccines are set higher than those for drugs? (Select all that apply.)

A) Some vaccines can induce a disease state.
B) Vaccines provoke side-effects in otherwise healthy children.
C) Vaccines are much more costly to develop and test than most drugs.
D) Vaccination programs are targeted at large populations.
E) Subunit vaccines can potentially integrate into the host genome and activate host oncogenes,leading to the development of cancer.