During the catarrhal stage of pertussis, symptoms are:
a. runny nose and mild cough.
b. severe and violent coughing.
c. vomiting and "whooping" as air is rapidly inspired into the lungs past a swollen glot-tis.
d. lymphocytosis and fever.
A
Classic pertussis is usually a disease of children and can be divided into three symptomatic stag-es: catarrhal, paroxysmal, and convalescent. During the catarrhal stage, symptoms are the same as a mild cold with a runny nose and mild cough; this stage may last for several weeks.
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