Which of the Following Statements Are True of the Different

Which of the following statements are true of the different types of immunity? (Read carefully and select all of the correct statements.)

A) Genetic immunity is programmed in DNA and weakens as we get older.
B) A vaccine is an example of artificially acquired passive immunity.
C) The maternal antibodies a newborn acquires from breast milk are an example of naturally acquired active immunity.
D) Recovery from a disease provides artificially acquired active immunity.
E) Passive immunity is always temporary because antibodies from another source last a few months at most.
F) Immune globulins (Ig) are antibodies, and Igs are available for diseases such as rabies and tetanus.
G) Herd immunity involves populations as well as individuals.
H) Antibodies that cross the placenta are an example of naturally acquired passive immunity.