Archive: 05/15/2008

Immune cells kill foes by disrupting mitochondria 2 ways

When killer T cells of the immune system encounter virus-infected or cancer cells, they unload a lethal mix of toxic proteins that trigger the target cells to self-destruct. A new study shows T cells can initiate cellular ...

May 15, 2008 4.4 / 5 (5) 1

Geneticists trace the evolution of St. Louis encephalitis

Before West Nile virus arrived in this country, we had (and still have) a home-grown relative of this pathogen. An epidemic of unknown origin exploded around St. Louis, Missouri in the autumn of 1933, a disease that is now ...

May 15, 2008 4 / 5 (5) 0