The investigation expands as the Center for Disease Control tries to determine what killed a Lebanon ten day old.
Avery Cornett died last week after he contracted the bacteria Cronobacter Sakazakii.
The Center for Disease control tested the Enfamil powdered baby formula Avery ate that was pulled from store shelves and now they are testing several more formulas the little boy ate in his ten days alive. No other brands of formula have been named.
A determination of a cause could be made as ealry as this week or it could take up to a month.