Mum's Agony as Daughter Battles Kidney Failure and Cancer Against All Odds
A mother has shared the heart-wrenching story of her daughter's relentless health battles, beginning with a misdiagnosed virus that escalated into kidney failure and later bowel cancer. Jennifer McNeill, 43, from Barking, east London, described how her nine-year-old daughter Bay repeatedly "beat the odds" after doctors initially dismissed her symptoms as a minor illness.
From Virus to Kidney Failure: A Mother's Nightmare
Bay's health struggles commenced in February 2018 when she was just two years old. Jennifer recalled thinking it was a simple virus, like a cold or malaise, after multiple GP visits. However, Bay's condition deteriorated over three weeks, with symptoms including extreme paleness, vomiting, and loss of balance. Despite two trips to A&E where medical staff suspected a virus and recommended Calpol, a third visit proved critical.
"Before we were about to go home, one doctor said, on our way out: 'Actually, I'm going to do a blood test. She does look a bit of an odd colour'," Jennifer recounted. The blood test revealed dangerously high potassium levels, leading to a swift diagnosis of kidney failure. Bay was rushed to London's Great Ormond Street Hospital (GOSH), where she was intubated and placed in a coma within minutes of arrival.
Doctors told Jennifer to "prepare for the worst," warning that Bay might not survive the night. Reflecting on the moment, Jennifer expressed immeasurable gratitude to the doctor whose insistence on a blood test "one million per cent saved her life."
Transplant Trials and Terrifying Complications
Bay required a kidney transplant, but Jennifer could not donate as she had already given a kidney to her mother. Fortunately, her identical twin sister Mimi instantly offered to be the donor. After three months in and out of ICU at GOSH, Bay was stabilised and sent home, where Jennifer administered dialysis for three years.
In August 2021, Bay received Mimi's kidney transplant, which initially appeared successful. "You could see the instant colour in Bay's face," Jennifer said. However, complications arose when Bay's lymphatic system was damaged during surgery, leading to a prolonged hospital stay until December 2021. Mimi also faced septicaemia post-surgery, adding to the family's distress.
"We had some very horrible conversations around if they can keep her safe, if they can save her, but Bay being Bay, she did beat the odds again," Jennifer noted, relieved that Bay returned home for Christmas.
Charity Support and Childhood Joy Amidst Adversity
Throughout Bay's ordeals, the charity Spread a Smile provided crucial emotional support. The organisation delivers joy through entertainers like magicians, musicians, and therapy dogs to seriously ill children in NHS hospitals. Jennifer met Spread a Smile staff in a park near GOSH when Bay was two, and their activities restored happiness to Bay's childhood.
"The other day, we went to the winter party and somebody was asking her, 'What does Spread a Smile mean to you?' She said: 'I get to meet lots of children like me'," Jennifer recalled. The charity's safe, inclusive environment allowed Bay to attend parties and social events, something rare for a vulnerable child.
Bowel Cancer Diagnosis and Intensive Treatment
In early 2024, Bay's blood tests showed abnormalities, and she exhibited symptoms like puffiness and blood in her stool. Tests indicated Epstein-Barr virus (EBV), which can lead to post-transplant lymphoproliferative disorder (PTLD) in immunosuppressed individuals. An ultrasound in December 2024 revealed a mass in her bowel, confirming a PTLD diagnosis.
"I think it's every parent's worst nightmare, to be honest," Jennifer said. Bay underwent a biopsy and lumbar puncture, confirming malignancy. Doctors recommended a reduced dose of chemotherapy combined with immunotherapy, but after three months, it proved ineffective. They then opted for an intensive 10-cycle chemotherapy regimen, a protocol used only nine times in over 20 years.
"She got through it," Jennifer said, despite the aggressive treatment challenging Bay's already weakened immune system. In November 2025, a PET scan confirmed Bay was cancer-free, a moment Jennifer described as "the most wonderful news."
Looking Forward with Hope and Gratitude
Bay now requires PET scans twice yearly, with a low likelihood of relapse. She remains homeschooled by Jennifer and has resumed activities like Brownies, chess club, and performing arts. "We live for now, until the next scan," Jennifer stated. "We are just completely going to grab life with both hands. It's really hard to put into words how much you appreciate life."
Jennifer emphasised the family's resilience and the support from Spread a Smile, which continues to play a vital role in Bay's life. "You're just thankful and grateful and I can't believe it, almost, I cannot believe it," she concluded, reflecting on the journey from despair to hope.



