IFNG and asthma: Previous inflammation and asthma mouse models indicate NKp46− ILC1 express IFN-γ, NKp46− ILC3 express IL-17A and NKp46+ ILC3 express IL-22.51–53 Interestingly, in this study, following intranasal viral vaccination both NKp46+ and NKp46− ILC1 and ILC3 were found to express IFN-γ and IL-22, but not IL-17A.