Human genetic susceptibility to infectious disease

Area of Science:

• Human genetics
• Immunology
• Infectious disease epidemiology

Background:

• Genome-wide studies increasingly identify genetic associations with infectious disease susceptibility.
• Rare mutations affecting specific infectious disease phenotypes are being discovered.
• Host genetic variation plays a critical role in determining individual responses to infections.

Purpose of the Study:

• To summarize the impact of host genetic variation on infectious disease susceptibility.
• To highlight the insights gained into the genetic architecture of infectious diseases.
• To identify key immune molecules and pathways involved in human host defense.

Main Methods:

• Review of recent genome-wide association studies (GWAS).
• Analysis of reported rare mutations linked to infectious disease phenotypes.
• Synthesis of findings on host genetic variation and immune response.

Main Results:

• Novel associations between common genetic polymorphisms and infectious disease susceptibility have been reported.
• An increasing number of rare mutations conferring susceptibility to specific infectious diseases have been identified.
• Host genetic variation is a key determinant of infectious disease outcomes.

Conclusions:

• Host genetic variation is fundamental to understanding susceptibility to infectious diseases.
• Genetic studies provide critical insights into the immune system's role in host defense.
• Identifying genetic factors can inform strategies for infectious disease prevention and treatment.