The 88-year-old was rushed back to the same hospital who had earlier declared her dead.
Officials in Brazil have now launched an investigation into how medical chiefs failed to realise the woman was alive and not dead when they sent her body for burial.
She had been brought to the hospital in the town of Ipatinga suffering from blocked arteries. She also suffered from Alzheimer’s and was bedridden.
Doctors declared her dead on Dec 22 after noticing she had no vital signs.
Her body was transferred to a local undertakers to prepare her for burial.
An official looking into her coffin noticed she was still breathing and that she had moved.
Custodia Amancio, daughter of the resuscitated Brazilian woman, said: “We are happy to know my mother is alive and unhappy with the lack of respect due her. We are still not sure if we will sue the municipality and hospital.
She was rushed back to the hospital, and died two days later, the O Globo newspaper reported, citing a release from the Ipatinga mayor’s office..