Two classrooms at Fort Huachuca daycare center in Sierra Vista have been shut down due to an outbreak of salmonella. Since last September, health officials have identified 45 cases of the illness, but they haven’t been able to find a source.

Two weeks ago, representatives from the Centers for Disease Control and Prevention came to town to help, but still no luck. Now, with the two new cases discovered on post, military officials say they had to take action.

According to KVOA News, officials closed two rooms as a precaution. The decision has paid off. Not only have health officials identified the two salmonella cases but they’ve also discovered another five children with symptons.