Staff and shoppers rushed to help a woman who collapsed in the Sainsbury’s supermarket at Kingsmead on Sunday afternoon.
A shopper performed CPR upon the woman, who is in her 50s, and managed to revive her as she lay in one of the aisles.
Paramedics then arrived to treat the woman.
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Elizabeth Thompson, 20, was in the store when the incident happened. She said: “This poor lady collapsed in one of the aisles.
“She was literally brought back to life in front of us. Those who saved her did an amazing job.”
South-East Coast Ambulance Service spokesman Richard Airey confirmed paramedics had attended the store on Sunday.
He said the woman had been resuscitated before being transferred to the QEQM Hospital in Margate.