Arteaga fell ill on a Thursday afternoon in June. He was in his office in Danville, Ill., when he says the symptoms came on quickly. "The chills, and body aches, severe cramping, sharp pain in my stomach," Arteaga recalls.
This spring, millions of Americans worried that salad was no longer safe to eat: The U.S. was hit by the largest E. coli outbreak in a decade, with 172 people in 32 states sickened by contaminated romaine lettuce. Eighty-nine of those individuals were hospitalized, and at least five died.
Disease hunters are using genetic sequencing in their investigation of the ongoing food poisoning outbreak linked to romaine lettuce, a technique that is revolutionizing the detection of germs in food.