Our latest paper, in collaboration with Dr Dawn Bowdish and colleagues, is now published in the Journal Cell Host and Microbe. This exciting study demonstrates in mouse models that aging-associated microbiota promote inflammation, and that reversing these age-related microbiota changes represents a potential strategy for reducing age-associated inflammation and the accompanying morbidity and lung infection. Furthermore, age-associated microbiota changes can be reversed by reducing TNF using anti-TNF therapy.