Journal
BRIEFINGS IN FUNCTIONAL GENOMICS
Volume 10, Issue 2, Pages 98-107Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bfgp/elq037
Keywords
Tuberculosis; leprosy; malaria; HIV; viral hepatitis; African populations; genetic diversity
Funding
- Wellcome Trust
- British Lung Foundation
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Progress in genomics and the associated technological, statistical and bioinformatics advances have facilitated the successful implementation of genome-wide association studies (GWAS) towards understanding the genetic basis of common diseases. Infectious diseases contribute significantly to the global burden of disease and there is robust epidemiological evidence that host genetic factors are important determinants of the outcome of interactions between host and pathogen. Indeed, infectious diseases have exerted profound selective pressure on human evolution. However, the application of GWAS to infectious diseases has been relatively limited compared with non-communicable diseases. Here we review GWAS findings for important infectious diseases, including malaria, tuberculosis and HIV. We highlight some of the pitfalls recognized more generally for GWAS, as well as issues specific to infection, including the role of the pathogen which also has a genome. We also discuss the challenges encountered when studying African populations which are genetically more ancient and more diverse that other populations and disproportionately bear the main global burden of serious infectious diseases.
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