ATLANTA (AP) -- Health officials say an Oklahoma baby is the third infant this month sickened by bacteria sometimes associated with tainted infant formula.

The child, from Tulsa County, was infected with Cronobacter sakazakii but fully recovered. An Illinois child also rebounded after being sickened by the bacteria. A Missouri infant who was 10 days old died.

The Missouri child's death was initially linked to Enfamil powdered infant formula. Powdered formula has been suspected in cases in years past. But health officials say the Oklahoma child had not consumed Enfamil.

U.S. officials are awaiting results from testing of powdered formula and distilled water used to prepare it. A Centers for Disease Control and Prevention spokeswoman said it's not clear that the three cases are connected.