A Client Receives the Yellow Fever Vaccine Before Traveling to the Amazon

Multiple Choice

A client receives the yellow fever vaccine before traveling to the Amazon Basin and asks the nurse how the vaccine provides protection. Which responses by the nurse are most appropriate? Select all that apply.

A) "Human macrophages engulf the weakened vaccine virus as if it is dangerous, and antigens stimulate the immune system to attack it."
B) "In the lymph nodes, which are part of the lymphoid system, the macrophages present yellow fever antigens to T cells and B cells."
C) "A response from yellow fever-specific T cells is activated. B cells secrete yellow fever antibodies."
D) "The vaccine contains large amounts of protective antibodies that were produced in another host organism, so it provides immediate protection against yellow fever."
E) "The initial weak infection is eliminated and the client is left with a supply of memory T and B cells for future protection against yellow fever."