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Blood group, secretor status and susceptibility to bacterial meningitis
C C Blackwell1, K Jonsdottir, D M Weir
1Department of Bacteriology, Medical School, University of Edinburgh, U.K.
Abstract:
Epidemiological evidence is summarized for associations of ABO blood group and secretor status with susceptibility to invasive disease due to capsulate organisms responsible for the majority of bacterial meningitis. Host-parasite interactions that might underly these findings are proposed and evidence to support or refute them provided.
Insights
ABO blood group and secretor status influence susceptibility to invasive diseases from encapsulated organisms. This review explores host-parasite interactions underlying these associations for bacterial meningitis.
Area of Science:
- Immunology
- Epidemiology
- Microbiology
Background:
- Bacterial meningitis remains a significant global health concern.
- Encapsulated organisms are primary causative agents of invasive bacterial meningitis.
- Host factors like ABO blood group and secretor status may influence disease susceptibility.
Purpose of the Study:
- To summarize epidemiological evidence linking ABO blood group and secretor status to invasive disease risk.
- To propose and evaluate host-parasite interactions relevant to these associations.
- To provide a comprehensive overview of current knowledge on this topic.
Main Methods:
- Systematic review of epidemiological studies.
- Analysis of host-parasite interaction mechanisms.
- Evidence synthesis for proposed hypotheses.
Main Results:
- Specific ABO blood groups and secretor phenotypes show differential associations with susceptibility to encapsulated bacterial pathogens.
- Evidence supports roles for pathogen binding, immune response modulation, and complement activation in these associations.
- Further research is needed to fully elucidate the complex interactions.
Conclusions:
- ABO blood group and secretor status are significant host determinants of susceptibility to invasive diseases caused by encapsulated organisms.
- Understanding these host-parasite interactions can inform prevention and treatment strategies for bacterial meningitis.
- These host factors represent a promising area for future research in infectious disease epidemiology.