The article discusses recent research in the field of antiviral immunity based on the original research paper "IL-21 is required to control chronic viral infection," by H. Elsaesser. K. Sauer, and D.G. Brooks that was published in the May 7, 2009 issue of "Science." The article mentions T cells, viral infections, and lymphocytic choriomeningitis virus (LCMV).
The article focuses on research on immune responses, regulatory T cells and T-cell signaling. Papers discussed which were published in other periodicals include "Dendritic Cell Stimulation By Mycobacterial Hsp70 is Mediated Through CCR5," by R. A. Floto et al and "Alterations in CD46-Mediated Tr1 Regulatory T Cells in Patients With Multiple Sclerosis," by A. L. Astier et al.
Presents an update on papers related to immunology as of January 2003. Role of a peptide in the activation of natural killer cells; Discovery of the non-T-cell activation linker; Adaptor involved in Toll-like receptor signaling.