All are true about bordetella pertussis except______________?

A.\tMost common cause is B. Petrussis

B.\tIt may occur in children and young adult after vaccination

C.\tBacteria culture from nasopharyngeal swab is the definitive diagnosis

D.\tPresence of antibodies in serum in diagnostic of the diseaseCorrect Answer

Correct Option: D.\tPresence of antibodies in serum in diagnostic of the disease

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