What is incorrect about pertussis?
A)A virulence factor of B.pertussis is toxins that destroy cilia cells is produced.
B)The source of infection is direct contact with inhaled droplets.
C)The paroxysmal stage is characterized by persistent coughing.
D)The number of cases is steadily decreasing since 1976.
E)It can cause severe, life-threatening complications in babies.

Question

Quizplus · Accepted Answer

The statement that the number of cases of pertussis is steadily decreasing since 1976 is incorrect. In fact, there has been a recent increase in cases in many countries, including the United States.

What Is Incorrect About Pertussis