Article Correctness Is Author's Responsibility: Airway Microbiome Appears Altered in Severe Asthma Linked to Neutrophils May 22, 2019 Author: American Thoracic Society (ATS) Category: Feed The airway microbiome appears to be altered in patients with severe asthma linked to high levels of white blood cells called neutrophils, according to new research presented at ATS 2019.