Tug-of-War: How bacteria prevent host-cell suicide

When they battle bacteria, animal cells have a surefire way to keep infection from spreading: They drop dead. New research suggests that with tiny tugs on the attacked cells’ membranes, bacteria may pester the cells into living longer—and keeping infections going strong.

HAIRY SITUATION. This Neisseria gonorrhoeae bacterium may keep its host’s cells alive with tugs from its pili, seen as dark strands around the cell.