The team used a high-powered microscope ... Under normal circumstances, there are populations of bacteria in our gut that are often considered harmful - like E. coli and salmonella.

Illustration of chicken under microscope Illustration by ... can peck at droppings and insects that carry salmonella and campylobacter. The bacteria settle in their intestines, usually without ...

In addition, health officials are investigating a second outbreak tied to a slightly different form of the bacteria, called ...