Viruses that cause acute respiratory infections — such as human metapneumovirus (HMPV) and flu — impair a set of immune system cells that should clear the virus from the lungs. Now, Vanderbilt University investigators have discovered the signaling pathway that disables these immune cells.

Targeting diabetes that develops after a stem cell transplant may help moderate graft-vs.-host disease, an adverse effect of the procedure, and improve outcomes.

Antibodies to the 2009 H1N1 influenza strain reveal new insights into how antibody diversity forms and functions, with possible implications for designing flu vaccines.