Medicine All of the following are true regarding whooping cough except: A Spread by droplet infection B 90% of cases occur in children under 5 years of age C The whoop stage is more infectious than catarrhal stage D Blood count shows lymphocytosis 💡 Explanation All of the following are true regarding whooping cough except: ✓ Correct Answer: C. The whoop stage is more infectious than catarrhal stage