by S. Mar­vin Fried­man — In­tra­cel­lu­lar pathogens face many daunt­ing prob­lems, among them how to ob­tain enough en­ergy and nu­tri­ents for ac­tive growth while, prefer­ably, keep­ing the host cell alive for as long as pos­si­ble. This is­sue is es­pe­cially acute for pathogens that grow at a fast rate and reach large num­bers. When they suc­ceed...