All are true about bordetella pertussis except______________?
Correct answer: D. Presence of antibodies in serum in diagnostic of the disease
- A. Most common cause is B. Petrussis
- B. It may occur in children and young adult after vaccination
- C. Bacteria culture from nasopharyngeal swab is the definitive diagnosis
- D. Presence of antibodies in serum in diagnostic of the disease
Explanation
Bordetella pertussis is usually identified by culture from a properly collected nasopharyngeal specimen, and serological testing can support diagnosis. The disease may still occur after vaccination because protection can wane, so the antibody statement is the intended exception.
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