Posted in Web Bronchitis Symptoms, Contagious, Transmission, and Recovery January 7, 2021 The primary symptom of acute bronchitis is a cough. Other symptoms include sputum production, sore throat, nasal congestion, headache, and cough up sputum or vomit mucus. How causes acute bronchitis? https://www.medicinenet.com/bronchitis_acute/article.htm