A signal can be respiratory.Logical formLearned from2 sentences. A (control ratio) can be respiratory.Logical formLearned from2 sentences. Bacterial pathogens can be respiratory.Logical formLearned from2 sentences. Medications may travel through a respiratory system.Logical formLearned from2 sentences. A respiratory infection can be such as a cold.Logical formLearned from2 sentences. A respiratory illness can be a flu.Logical formLearned from2 sentences. Incidences can be constituted-of-or-filled-with respiratory infection.Logical formLearned from2 sentences. Persons can be respiratory.Logical formLearned from2 sentences. A respiratory system may be caused by a (bacterium bordetella pertussis).Logical formLearned from2 sentences. Cough can be an infection of a respiratory system.Logical formLearned from2 sentences. Someone may have a respiratory infection.Logical formLearned from2 sentences. Some respiratory diseases may be prevented.Logical formLearned from2 sentences. A common cold can be a respiratory infection.Logical formLearned from2 sentences. A (droplet transmission) can be respiratory.Logical formLearned from2 sentences. Introduction can be to respiratory disease.Logical formLearned from2 sentences.