Baby Kaylee Vitelli, the infant in the middle of an organ transplant debate, has been rushed to a Toronto hospital after becoming sick again, according to a family spokesperson.

The three-month-old child has developed an infection and a high fever, J.P. Pampena said in a news release on Monday.

She was taken to the Hospital for Sick Children on Monday afternoon -- the same hospital where she spent the first weeks of her life.

The infant has a rare brain condition known as Joubert Syndrome. It causes a condition known as sleep apnea where she stops breathing when she sleeps.

Her story made national headlines -- and triggered a debate about the ethics of organ donations -- three weeks ago when her parents made public their desire that Kaylee's heart be transplanted into another ill baby at the Hospital for Sick Children.

Doctors believed Kaylee would die without life support and agreed to transplant her heart into the other baby when she died.

But Kaylee continued to breathe on her own after she was taken off life support,. Doctors deemed her to no longer be a transplant candidate, but the infant remained at the hospital.

Kaylee's parents, Jason Wallace and Crystal Vitelli, have also made headlines for publicly complaining about the care their child was given at Sick Kids.

Wallace also made headlines for having a criminal record.

The hospital has always stood by their staff and has insisted Kaylee has received the best of care under their watch.