The State Health Department was in Bryan Thursday continuing its investigation into a small outbreak of E Coli.
Five people in Brazos County have contracted the potentially deadly bacteria.
Three adults have recovered, while College Station brothers 17-month-old Noah Melton and 4-year-old Jack Melton remain in fair condition at Texas Children's Hospital in Houston.
The Brazos County Health Department says it's possible they will never know the source of the bacteria, but investigators will work hard to try and find it.
"It looks like right now, the way it stands that the dates of illness ranged from April the 18th to the 22nd. There's not been any new cases that it appeared since that time, but one of the big things that they are looking at and going through are hospital records, clinic records, reports that have been called into us at the health department," said Julie Anderson, a Registered Nurse and the Community Health Services Director for the Brazos County Health Department.
It's suspected three other adults contracted E. coli but those patients never went to the doctor, so health officials won't be able to confirm if they're part of this small outbreak.