EEA1 and allergic bronchopulmonary aspergillosis: Our work provides evidence to support a role for phagocytosis defects in the development of ABPA, and although previous work suggests that EEA1 is primarily involved in endosome fusion to the phagosome, rather than to particle engulfment and internalization, our results support a role for EEA1 in both phagocytosis and phagolysosome acidification of A. fumigatus, as both of these processes appear affected by the presence of EEA1 SNPs.