Pertussis vaccination has been available for over 50 years, however…

Question Pertussis vaccination has been available for over 50 years, however… Pertussis vaccination has been available for over 50 years, however periodic disease outbreaks still occur, which of these factors contribute to these outbreaks of pertussis? (select all correct answers)Select one or more:a. People who arrive from overseas may carry new strains of pertussis which Australians are not vaccinated againstb. Pertussis keeps mutating so new vaccines need to be created and administratedc. Pertussis is highly infectiousd. Individuals pertussis immunity decreases over timee. After the primary full course of three doses, the effectiveness for typical disease is still only around 84%f. Booster doses in adolescents and adults may not occur regularly Health Science Science Nursing Share QuestionEmailCopy link Comments (0)