Listeria costaricensis is the official name given to the new bacterial species, discovered in an industrial drainage area in the Costa Rican province of Alajuela.

It is well known that individuals with a particular version of human leukocyte antigen have an increased risk for rheumatoid arthritis, but there has been growing interest in the role of environmental pollutants. In a new mouse study, researchers probed the relationship between the two.

Using a homemade, high-tech microscope, scientists at the School of Medicine have revealed how a cancer-causing virus anchors itself to our DNA. That discovery could pave the way for doctors to cure incurable diseases by flushing out viruses, including HPV and Epstein-Barr, that now permanently embed themselves in our cells.

Researchers have developed a method that enables them to genetically modify immune cells, multiply them and visualize them in living organisms. The technique will better evaluate and study the the inflammatory process.