A 26-year-old woman from Bridgwater in Somerset has found out she has one of the most uncommon blood groups in Britain, with only nine other blood donors across the entire UK who share her exact combination. Mina Stoddart-Stones carries blood that is U negative and N negative—lacking antigens found in nearly 100% of the British population—alongside the rare RO subtype often seen in people of African or Caribbean descent. Her donations are so precious that they are frozen for up to 30 years by NHS Blood and Transplant, kept solely for patients with compatible rare blood groups requiring surgery or regular transfusions. Stoddart-Stones, who has been donating for years, only recently learned of her VIP status within the NHS, describing the discovery as making her feel very special and honoured.
A Gift Beyond Measure
Stoddart-Stones’s dedication to giving originates in deeply personal experiences within her own family. As a baby, she was ill and underwent medical treatment, and her father subsequently fought cancer—experiences that instilled in her a strong gratitude for the NHS and its vital services. These defining experiences shaped her determination to contribute to the health service that had been there for those close to her during their hardest moments. Now, with her unique blood classification, she has found a distinctly impactful way to make a tangible difference to patients across Britain.
“The small portion that I can do assisting them as much as they’ve helped my family,” she reflected on her motivation. Beyond blood donation alone, Stoddart-Stones has also enrolled as a stem cell donor, additionally broadening her potential to help others. Joanne Mathews, director of NHSBT’s National Frozen Blood Bank in Liverpool, described meeting Stoddart-Stones as akin to meeting “royalty,” noting the extraordinary value of her contributions. Her blood units are assigned exclusively to patients with matching rare types, guaranteeing every precious donation reaches those who truly need it.
- Only nine UK donors share Stoddart-Stones’s rare exact blood type combination
- Her blood is preserved for up to 30 years for use by future patients
- Rare blood donors comprise only 0.01% of the UK’s 800,000 blood donors
- She is also listed with the stem cell donor panel
Understanding Rare Blood Types
Blood type rarity is established through the presence or absence of specific antigens—proteins and sugars on the surface of red blood cells that provoke immune reactions. Most individuals have common antigens such as the U and N antigens present in approximately 99% of the UK population. However, people such as Stoddart-Stones do not possess these antigens entirely, making their blood unsuitable for the overwhelming majority of patients. This genetic difference, whilst uncommon, proves essential for those uncommon patients who share the same blood type and need blood transfusions or surgical intervention.
The National Health Service maintains specialised cryopreserved blood facilities to preserve these exceptionally rare donations for extended periods, ensuring they remain available when required. Patients with uncommon blood groups face significant challenges during medical emergencies or when undergoing planned operations, as finding compatible blood can prove extraordinarily difficult. In the absence of specialist rare donor initiatives and cryopreserved blood stockpiles, patients suffering from conditions such as sickle cell disease requiring regular transfusions would face severely limited treatment options. The NHS’s forward-thinking strategy to recognising and assisting uncommon blood donor populations has transformed treatment for these at-risk individuals.
The Research Underlying the Scarcity
Stoddart-Stones’s blood group is classified as U negative and N negative, meaning she completely lacks the U and N antigens found in nearly all other people. Additionally, her blood is RO sub-type, a rare classification more frequently observed in populations of black African and Caribbean descent. This combination of missing antigens and uncommon subtype makes her blood exceptionally valuable for specific patient populations. The genetic basis for these variations remains a subject of ongoing medical research and study.
When patients receive incompatible blood transfusions, their body’s defences attack the incompatible blood cells, potentially triggering serious complications ranging from fever and jaundice to organ damage and death. For patients with rare blood types, finding compatible donors before emergency situations arise is essential for survival. NHS Blood and Transplant’s rare blood donor registers identify individuals with these precious blood types and maintain detailed registries. This systematic approach ensures that when a patient with rare blood requires urgent transfusion, suitable blood units can be located and administered swiftly.
- Antigens are protein structures on red blood cells that define blood compatibility
- Rare blood types impact fewer than 0.01% of UK donors overall
- Cryopreserved blood supplies can be preserved for as long as 30 years without degradation
Critical Applications
Mina Stoddart-Stones’s unusual blood type proves crucial for patients facing surgery or demanding emergency treatment. Her donations are reserved exclusively for patients with corresponding blood types, making certain when a seriously ill person arrives at hospital needing a blood transfusion, suitable blood is on hand. For patients with conditions such as sickle cell disease, which demands ongoing transfusions across their lifetime, the supply of rare blood donors like Stoddart-Stones means the gap between manageable treatment and life-threatening complications. The preserved blood stocks maintained by NHS Blood and Transplant guarantee that even when emergencies strike unexpectedly, medical teams can act quickly with carefully matched blood.
Without dedicated rare donor programmes, people requiring uncommon blood types would face extraordinary delays during health emergencies, possibly causing preventable deaths. Stoddart-Stones’s work has substantially saved lives across Britain, though she may never know the names of people she has helped. Her commitment to regular donation, alongside her involvement with the stem cell register, shows genuine commitment to helping the health service after her own family benefited from medical care during childhood illness and her father’s treatment for cancer. This individual drive encourages numerous rare blood donors to sustain their participation with national blood donor programmes
| Condition | Treatment Requirement |
|---|---|
| Sickle Cell Disease | Regular transfusions to manage chronic anaemia and prevent complications |
| Thalassaemia Major | Frequent blood transfusions to replace defective red blood cells |
| Surgical Operations | Compatible blood available for transfusion during planned procedures |
| Haemolytic Transfusion Reactions | Specially matched rare blood to prevent immune system complications |
The Frozen Blood Bank Network
NHS Blood and Transplant operates the National Frozen Blood Bank in Liverpool, where Joanne Mathews and her team keep detailed records of donors with rare blood types and their precious donations. Blood units from rare donors like Stoddart-Stones are stored frozen for up to 30 years, creating a national stockpile that can be mobilised within hours when required. This frozen storage facility revolutionises the provision of rare blood supply, allowing the NHS to maintain supplies that would otherwise degrade within weeks. The Liverpool facility represents the cornerstone of Britain’s rare blood security systems.
Stoddart-Stones features prominently in the National Frozen Blood Bank’s documentation, with her name and blood type information carefully catalogued to ensure her donations go exclusively to patients with matching rare types. Mathews described meeting Stoddart-Stones as encountering “nobility,” highlighting the exceptional status these donors hold within the health service. The frozen blood network extends across the nation, linking exceptional donors with patients across Britain who desperately need their vital donations. This sophisticated system illustrates how modern medical science is able to protect valuable blood supplies for future emergencies.
Individual Drive and Community Influence
For Mina Stoddart-Stones, the choice to give blood extends far beyond a simple health service contribution. Her motivation is deeply rooted in lived experience, shaped by her own childhood illness and her father’s fight against cancer. Through direct experience of the transformative power of medical care, she feels a profound sense of responsibility to give back to the medical system that assisted her family during their most vulnerable moments. This deep bond converts her rare donations from a clinical transaction into a genuine gesture of gratitude and solidarity with people dealing with grave health conditions.
The effect of Stoddart-Stones’ dedication reverberates through the complete rare blood donation network, inspiring others to recognise their own ability to rescue lives. By publicly sharing her role as one of only nine donors with her remarkably scarce blood type, she increases understanding about the essential value of rare blood donations. Her commitment to engage in the stem cell register alongside her blood donations demonstrates a comprehensive approach to healthcare participation. For patients with conditions requiring precisely compatible blood, contributors such as Stoddart-Stones represent hope when standard sources cannot meet their medical needs.
- Stoddart-Stones is involved with both blood donation and stem cell registers at the same time
- Her childhood illness and her father’s cancer care shaped her commitment to helping others
- Rare blood donors offer support for patients with sickle cell disease and thalassaemia major
The Elite Position of Rare Donors
Mina Stoddart-Stones occupies an remarkably rare position within the NHS Blood and Transplant service. As just nine donors in the whole of the UK with her specific blood type—U negative and N negative—she has been classified as a VIP donor whose donations receive with exceptional care. Her blood type is so rare that she does not possess the antigens present in the vast majority of the British population, making her biological profile crucial to the health service. This rarity has elevated her status considerably, transforming her from an ordinary volunteer donor into a nationally recognised resource whose blood is carefully frozen and stored for extended periods, awaiting patients who match her remarkably uncommon profile.
The acknowledgment afforded to Stoddart-Stones extends beyond mere acknowledgment of her rarity. Joanne Mathews, manager of NHSBT’s National Frozen Blood Bank in Liverpool, expressed the profound significance of meeting such a donor by comparing the experience to encountering royalty. This figurative comparison demonstrates the genuine importance these donors hold within the medical establishment. The frozen blood bank maintains meticulous records of uncommon donors like Stoddart-Stones, ensuring that her blood units are allocated exclusively to patients with compatible blood types. She belongs to NHSBT’s UK rare donor panel, which comprises approximately 1,200 individuals—roughly 0.01 per cent of the 800,000 blood donors across Britain—highlighting just how select this group truly is.
Recognition and Accountability
Being designated a VIP rare donor carries both significant prestige and meaningful commitment. Stoddart-Stones has taken on this combined position with clear dedication, understanding that her contributions substantially affect patients requiring operations or coping with persistent health issues like sickle cell disease. The responsibility goes further than straightforward contribution; it demands preserving her wellbeing, keeping routine appointments, and recognising the vital significance of her contribution to the NHS. This distinguished position changes her from a passive participant in the blood donation system into an active partner in lifesaving treatment, with her name and profile familiar to the specialists who protect her precious biological resource.