Doctors said Begum's condition was improving after treatment for dehydration, insomnia, stress and weakness.
Before Begum's rescue, the last survivor was found April 28, but her story ended in tragedy. As workers tried to free Shahina Akter, a fire broke out and she died of smoke inhalation.
Officials say the owner of Rana Plaza illegally added three floors and allowed five garment factories in the building to install heavy machines and generators, even though the structure was not designed to support such equipment.
The owner and eight other people, including the owners of the garment factories, have been detained.The Textiles Ministry has also begun a series of factory inspections and has ordered about 22 closed temporarily for violating safety and working standards.