DNA-based Testing in BAL of Lung Transplant Recipients With Suspected Non-viral Lower Respiratory Tract Infection

Cohen's kappa of any pathogen isolation by DNA-based testing vs. standard cultures in comparison to the final diagnosis of non-viral lower respiratory tract infection

Cohen's kappa measures the agreement between methods and the final clinical diagnosis. Both methods (DNA-based testing and standard cultures) will result in isolation of a non-viral pathogen or no isolation of a pathogen. A final clinical diagnosis will classify patients clinically in two categories as non-viral lower respiratory tract infection or no non-viral lower respiratory tract infection usually made 48-72 hours made after sampling. Cohen's kappa will be compared between the two methods.

Time frame: 6 month