1. Investigate the incidence and epidemiological characteristics of pertussis infection in COPD population.
2. To explore the relationship between pertussis infection and COPD exacerbation.
Age
40–80
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
\- Clinical diagnosis of acute COPD
You may not be if
\- Major diseases except COPD; Significant abnormality in laboratory examination; Clinical diagnosis of lung cancer, bronchiectasis, pneumoconiosis or other simple restrictive ventilation dysfunction; Patients with a history of asthma, allergic rhinitis, or a blood eosinophil count of 2600/mm3 (0.6x10\^9/L) within 4 weeks; Currently suffering from active tuberculosis; Patients with life-threatening pulmonary embolism, or al-antitrypsin deficiency, or cystic fibrosis; Patients who have undergone lung resection.
Clareo Health | A Multi-center Study to Determine the Prevalence and Influence of Pertussis on COPD Exacerbation in Shenzhen
