Characteristics of whooping cough in adults include the presence of 3 phases, the Catarrhal phase, the Spasmodic Cough phase, and the Intermittent phase. Pertussis is a contagious respiratory disease that is most prevalent in children under 5 years of age, but also in some adults. Clinical features include three phases, the kala phase, the spasmodic cough phase, and the intermittent phase. The kala phase is usually around 1 to 2 weeks after the onset of illness and is similar to cold symptoms, which may include fever, runny nose, and mild cough. Then enter the spasmodic cough phase, this stage of the cough becomes more intense, usually appear paroxysmal spasmodic cough, some patients may also be coughing to cause urinary incontinence. In the intermittent phase, the frequency and severity of coughing generally decreases, but secondary infections may occur during the intermittent phase. Adults with pertussis should also be hospitalized.