Infection control specialists have determined that the source of bacteria that killed three infants at Geisinger Medical Center in Danville, Pa., was equipment used to measure and administer donor breast milk, according to news reports.

In addition to the three deaths, the pseudomonas bacterium sickened eight in the hospital's neonatal intensive care unit (NICU).

The hospital switched to single-use equipment following the outbreak. There have been no new cases of infants becoming ill from pseudomonas in the NICU since making the change, the hospital reported.

Read the Associated Press's coverage of the news.