U.S., May 1 -- ClinicalTrials.gov registry received information related to the study (NCT06951321) titled 'Characteristics of Postinfectious Cough' on April 14.
Brief Summary: Collect the age, sex and other demographic data of 1600 patients with chronic cough after COVID-19 infection and clinical parameters such as cough characteristics, establish a cohort of patients with chronic cough after COVID-19 infection, observe the type and level of airway inflammation, airway responsiveness, cough sensitivity and changes in microbiology of patients with chronic cough after COVID-19 infection, clarify the epidemiological characteristics, clinical pathophysiological characteristics, long-term prognosis and related factors of patients with chronic c...