IF THEY WERE CONCENTRATION CAMPS WE'D BE INFLICTING TORTURE AND DISEASE....:

"The conditions within which they are held could be compared to torture facilities," the physician, Dolly Lucio Sevier, wrote in a medical declaration obtained exclusively by ABC News.

Lucio Sevier, who works in private practice in the area, was granted access to the Ursula facility in McAllen, which is the largest CBP detention center in the country, after lawyers found out about a flu outbreak there that sent five infants to the neonatal intensive care unit.

After assessing 39 children under the age of 18, she described conditions for unaccompanied minors at the McAllen facility as including "extreme cold temperatures, lights on 24 hours a day, no adequate access to medical care, basic sanitation, water, or adequate food."

All the children who were seen showed evidence of trauma, Lucio Sevier reported, and the teens spoke of having no access to hand washing during their entire time in custody. She compared it to being "tantamount to intentionally causing the spread of disease."

In an interview with ABC News, Lucio Sevier said the facility "felt worse than jail."

"It just felt, you know, lawless," she said. "I mean, imagine your own children there. I can't imagine my child being there and not being broken."

Conditions for infants were even more appalling, according to the medical declaration. Many teen mothers in custody described not having the ability to wash their children's bottle.

And children who were older than 6 months were not provided age-appropriate meal options, including no pureed foods necessary for a child's development, Lucio Sevier reported.

"To deny parents the ability to wash their infant's bottles is unconscionable and could be considered intentional mental and emotional abuse," she wrote.

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