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Background: The combined infection rate and bacterial spectrum has not been reported in COVID-19 patients. Methods: Constant temperature amplification reaction and real-time fluorescence analysis was performed for common bacterial respiratory pathogens on sputum samples (spontaneous or induced) from a prospective cohort study of infections. Forty-nine suspected COVID-19 cases from Guangdong Second Provincial General Hospital were included in the study, 49.0% were male. Results: Probabledoi:10.21203/rs.3.rs-41416/v1 fatcat:e5g6j32bujdyxkrcn7rnv33mae