Completed Pregnancy, Children & Inherited Conditions Diabetes, Hormones & Metabolism

The health consequences of inherited red blood cell disorders in Kenya.

In plain English

AI plain-English summary

In Kenya, more than 90,000 children have been admitted to a single district hospital over the past two decades with severe illness linked to inherited blood disorders that also protect against malaria. This project examines how genetic variants such as sickle cell trait (HbS), alpha-thalassaemia, and G6PD deficiency—common in malaria-endemic regions—affect health both individually and in combination. The researcher will combine laboratory studies with analysis of two large datasets: a birth cohort of 16,000 children and the continuous hospital surveillance records. This matters because these genetic polymorphisms are widespread in Africa, yet their full health consequences—beyond malaria protection—remain poorly understood. For example, the same variants that reduce malaria risk may increase susceptibility to other infections or cause anaemia. If successful, this work could inform clinical guidelines for managing children with these inherited conditions, improving paediatric care in hospitals across sub-Saharan Africa. It may also help predict which children are most vulnerable to severe illness, allowing better allocation of limited healthcare resources. The research is primarily fundamental science, but deeper understanding of these genetic interactions could eventually shape public health strategies for malaria and other diseases.

View original technical description
I will investigate the mechanisms and interactions between a range of human-genetic malaria-protective polymorphisms including HbS, alpha-thalassaemia and G6PD deficiency through both laboratory-based and clinico-epidemiological approaches. Specifically, I will measure the impact of these polymorphisms, both individually and in combination, on well-characterised malaria, and non-malaria phenotypes through laboratory studies and through the analysis of epidemiological data from (i) a birth cohort study of 16,000 children and (ii) a study derived from the continuous surveillance of more than 90,000 paediatric admissions to Kilifi District Hospital in the last 20 years.

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Researchers

Thomas Williams (EPMC Awardee)

Related Research

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The health consequences of genetic variants that have been selected by malaria, with a particular focus on polymorphisms affecting the red blood cell
Improving the evaluation of severe malaria
Functional studies of the malaria-protective Dantu polymorphism
Epidemiological and functional dissection of the co-evolution between Plasmodium falciparum parasites and sickle haemoglobin.
Epistasis and the genetics of disease resistance

Original classification

Senior Research Fellowship Clinical Renewal

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