Which of the following statements about Bordetella pertussis is INCORRECT?

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Bordetella pertussis is the primary causative agent of whooping cough.The infection can still develop in children and young adults despite prior vaccination.Definitive diagnosis is achieved by culturing bacteria from a nasopharyngeal swab.Detecting antibodies in the blood serum is diagnostic for the infection.

Explanation

Statements A, B, and C are accurate regarding Bordetella pertussis. However, the presence of antibodies in serum is not considered a definitive diagnostic method for the disease, making option D incorrect.