試題詳解

48. According to the passage, which of the following is NOT true?
(A) The chickenpox vaccine was first invented and widely used in the mid-1990s.
(B) People first did not view the chickenpox as a serious public health threat, and some continue to think so.
(C) As the numbers of vaccinated children greatly increase, the chickenpox cases effectively reduce.
(D) Vaccination against the chickenpox is recommended to help prevent the onset of shingles.