State laboratory tests have found that 11 people became ill with E. coli infection after eating tri-tip from The Grill at the Meat Market - including a man who is hospitalized with kidney problems.

Earlier tests conducted by Fresno County health officials found that 27 people, including the 11, had E. coli infections, which can cause stomach cramps, diarrhea and sometimes kidney failure. 

Officials believe the contaminated meat was served at least three parties.