Mumbai, at least two of her close contacts were also found infected with the Delta Plus variant, the Brihanmumbai Municipal Corporation (BMC) said.
Another woman died on July 27 in the ICU. Only on August 11 the state authorities learnt that she had Delta Plus variant infection after the genome sequencing report came.
The state's health official said that the woman had taken both the doses of Covishield vaccine, and was tested coronavirus positive on July 21.
Among the five deaths linked to the Delta plus variant, two patients were from Ratnagiri district and one each from Raigad, Beed and Mumbai The maximum number of Delta plus patients (13) hailed from Jalgaon in north Maharashtra followed by Ratnagiri at 12 and Mumbai 11, it said.