The charity takes registrations from people up to 55, whereas UK charity Antony Nolan takes only samples from those up to 30.
In addition to the donor drive, a “swab squad’ took registrations in Kosher Kingdom in Golders Green. Shoppers were given kits before Passover to do a “Seder swab”.
Mrs Berger’s son Jonni said: “We had an amazing response, with almost 550 kits collected in just seven days.
“I am grateful to all who helped and encouraged their friends, family and colleagues to do a mitzvah.”
Mrs Berger is undergoing further chemotherapy for a blood disorder as her original course of treatment was not as successful as hoped. After this round of chemotherapy, she will be in urgent need of a bone marrow transplant.
