Bronchitis simply means an inflammation of the bronchus, the windpipe. This is usually caused by infection (viral, bacterial, fungal, etc) or allergy or both. This condition is widely prevalent throughout the world and is a frequent cause of absenteeism from school and work.
Bronchitis seems to be slightly more common in women as compared to males though the difference is not significant. It is more common amongst the younger age-group as compared to the adult population.
There are structural and functional changes in the brain in the patients with autism. However, the exact cause of these changes is not fully understood.