Hacienda HealthCare said it welcomed the DNA testing of employees.
"As an organization, Hacienda HealthCare stands fully committed to getting to the truth of what, for us, represents an unprecedented matter", David Leibowitz, spokesman for Hacienda HealthCare, said in a statement released to ABC News.
Since the news of the incident broke, parents of patients at the Phoenix-based health care facility have come forward, expressing their concerns.
After the incident, she was "horrified" about his reaction and said that "by law, we are supposed to report things like that". Her identity has not been reported and it is not known if she has a family or a guardian.
Local news website Azfamily.com first reported the woman, who had been in a vegetative state for more than 10 years after a near-drowning, delivered a baby on December 29.
The woman said not one person reported the incident out of fear, adding that it is likely other forms of abuse took place over the years. It's also unclear if staff members at the Hacienda de Los Angeles facility were unaware of the pregnancy until the birth.
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Staff at the private health facility were not aware that she was pregnant and were initially surprised when she began moaning during the beginning of her labour, according to Reuters.
CBS Phoenix affiliate KPHO-TV was first to report on the birth.
"I wasn't there", Meyers said.
Victim advocate Tasha Menaker, chief strategy officer of the Arizona Coalition to End Sexual and Domestic Violence, said it would be appropriate for police to run DNA tests on male employees at the facility.
A female staff member said another female staff member "entered the room and just wanted to talk with [the other staff member]" who was giving the bath.
The Hacienda facility serves infants, children and young adults who are "medically fragile" or have developmental disabilities, according to its website.
"During this time, the agency has required heightened safety measures be implemented at the facility including increased staff presence during patient interactions, increased monitoring of the patient care areas, and increased security measures with respect to visitors at the facility", said a spokesperson for the department. For example, an investigation in 2013 found that a staff member had made "inappropriate, sexual statements" about four clients.