21st August 2023

A 3-year-old boy presents with a 10-day history of persistent coughing fits

A 3-year-old boy presents with a 10-day history of persistent coughing fits. He had a low-grade fever and runny nose a week before the coughing started. The boy was immunised as per the UK schedule. His mother tells you that the coughing spells are so intense that he struggles to catch his breath and sometimes turns blue.

What’s your primary diagnosis?