Sustained coevolution of phage Lambda and involves inner- as well as outer-membrane defences and counter-defences.

Bacteria often evolve resistance to phage through the loss or modification of cell surface receptors. In and phage λ, such resistance can catalyze a coevolutionary arms race focused on host and phage structures that interact at the outer membrane. Here, we analyse another facet of this arms race involving interactions at the inner membrane, whereby evolves mutations in mannose permease-encoding genes and that impair λ's ability to eject its DNA into the cytoplasm.

Children of Military Families.

There are special considerations when treating depression in the children of military families, due to both unique stressors and unique access to treatment and support resources. This article provides a brief overview of the history of military family care, an understanding of ongoing efforts to provide excellent and timely care for these children, and an understanding of the unique stressors and challenges that the depressed military child faces. The Department of Defense is dedicated to providing for the unique needs of military children and providing robust services to care for these children and their families.