Cough analysis
A total of 5 articles including 124 patients reported on the prevalence of cough, which ranged from 24.83-100%. Due to the heterogeneity in the results of the primary studies, the random-effects model used for assessment. By combining these 6 articles, it is revealed that cough is the second most common symptom presenting in co-infected patients (43.3% [95% CI 24.1–64.8, p = 0.000]). Figure 5 (B).