Researchers show a crucial protein of the innate immune system has six different forms, and probably many different roles in the body — ScienceDaily

Shigella infections cause fever, stomach pain, and prolonged, sometimes bloody diarrhea for as long as a week. The bacteria sicken 450,000 people each year in the US alone. Although most people recover on their own, children and those with weakened immune systems are at risk of Shigella infections spreading to their bloodstream and causing kidney damage. Shigella infections are a…