Our vision
Seerave envisages a future where microbiome science leads to a paradigm shift in humanity’s approach to health and the environment.
Drawing inspiration from the personal experience of the Rees family, Seerave is initially focussing on the immune-modulating potential of the microbiome to deliver transformational benefits for cancer patients.

Our thesis
At the frontier of oncology, clinicians are using patients’ own immune systems to treat cancer. We believe that these immunotherapies hold great promise, and that the microbiome is key to realizing the full potential of the immune system to cure disease.
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The human body exists in symbiosis with the trillions of microbes that inhabit it.
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The microbes comprising our ‘gut microbiome’ play a uniquely profound role in our health as an intrinsic part of our immune system, with implications for how we treat cancer.
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We can improve cancer patients’ outcomes and quality of life by supporting their microbiome before, during, and after cancer treatment.
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We do this by enabling the generation of new scientific insights at the intersection of microbiome and cancer science, translating those discoveries into updated advice for clinical practice and novel clinical tools.
Our purpose
Seerave’s purpose is to improve outcomes and enhance quality of life for every patient by integrating the microbiome and its role in immune system performance into comprehensive cancer care.

What we do
Fund and convene
We fund the world’s leading researchers and innovators working on the microbiome, cancer, and the immune system. We convene experts from these disparate fields of science and medicine to foster advancements that come from their shared insights.
We work with urgency to bring these insights directly to patients, by organizing efforts to evaluate and deliver updated advice on clinical practice, and by investing in novel clinical tools.
Our three strategic pillars focus on evidence generation, updates to clinical practice, and the development of novel tools, each informed by the other and aligned against a goal of improving patient outcomes and quality of life within the coming years.

Who we are
Proactive family foundation
The Seerave Foundation (pronounced “SEE-reyv”) is named after Eva Rees, whose experience fighting metastatic melanoma inspired her husband David Rees and daughter Elisabeth Rees to establish the foundation in 2015.
Seerave’s team includes scientists, entrepreneurs, and public health experts driven by the conviction that our microbiome presents a powerful opportunity to shape our immune system’s ability to withstand cancer.
- Immune System
- Symbiosis
- Microbiome
- Personalised Cancer Treatments
- Immune System
- Symbiosis
- Microbiome
- Personalised Cancer Treatments
- Immune System
- Symbiosis
- Microbiome
- Personalised Cancer Treatments
- Immune System
- Symbiosis
- Microbiome
- Personalised Cancer Treatments
- Involved
- Pragmatic
- Proactive
- Collaborative
- Open Science
- Integrative
- Involved
- Pragmatic
- Proactive
- Collaborative
- Open Science
- Integrative
- Involved
- Pragmatic
- Proactive
- Collaborative
- Open Science
- Integrative
- Involved
- Pragmatic
- Proactive
- Collaborative
- Open Science
- Integrative
- Data Integration
- Translational Science
- Clinical Guidelines
- Advocacy
- Novel Tools
- Data Integration
- Translational Science
- Clinical Guidelines
- Advocacy
- Novel Tools
- Data Integration
- Translational Science
- Clinical Guidelines
- Advocacy
- Novel Tools
- Data Integration
- Translational Science
- Clinical Guidelines
- Advocacy
- Novel Tools
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