Esmerelda is in a play group with a child that has chicken pox. Esmerelda’s father does not have to worry about his daughter contracting chicken pox because she had a vaccine when she was a baby. How was biotechnology involved in Esmerelda’s preventative health?

Vaccines train the immune system to recognize a disease-causing germ so it can respond more effectively if exposed later. Biotechnology was used to develop the chicken pox vaccine Esmerelda received as a baby; it did not replace lost cells, cure an active infection, or eradicate the disease. The correct choice is D, biotechnology helped create the vaccine that prevented her from contracting chicken pox.

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