What are the symptoms of whooping cough (pertussis)? The symptoms of whopping cough are very similar to a flu, what are the main distinctions?

Actually, . Actually, the whooping cough (pertussis) resembles a cold more than the flu. The main symptoms are usually nasal congestion, sore throat and cough. Pertussis is usually indistinguishable from a cold until the 2nd or 3rd week of infection, when severe attacks of cough occur, which may trigger vomiting. This cough may last up to six to eight weeks. It is almost impossible to distinguish pertussis from a cold during the first week of symptoms, and requires lab tests. Severe coughs developing two weeks apart in several family members may be a clue. Unfortunately, antibiotics do not help unless started within the first (possibly 2nd) week of pertussis infection. When they are prescribed, it is usually to prevent spread for others.
Cough. The cough one gets with whooping cough is very specific and is more paroxysmal or like a spasm. The patient coughs until there is no air left in the lungs and when they breath in it makes a "whooping" sound. With whooping cough the patient often feels well except when coughing but with the flu they will feel poorly even when not coughing, including headache, aches and chills.