Erratum: volume 45, number 1, january 2000
The legend to the issue's cover figure was incorrectly printed. It should have read: Cover micrograph: Actin-comet tails induced by the bacterial pathogen Listeria monocytogenes. Vero cells were infected by Listeria monoctyogenes. After fixation, cells were labeled with FITC-phalloidin (green) and anti-listeria antibodies (red). Photo courtesy of Inigo Lasa and Pascale Cossart.