Predicting post-vaccination autoimmunity: who might be at risk?

Area of Science:

• Immunology
• Vaccinology
• Autoimmunity

Background:

• Vaccinations are crucial for infectious disease control and public health.
• Adverse effects, such as autoimmune/inflammatory syndrome induced by adjuvants (ASIA), can rarely occur post-vaccination.
• Vaccine components, including immunogens and adjuvants, may trigger or exacerbate autoimmunity.

Purpose of the Study:

• To identify individuals susceptible to developing ASIA following vaccination.
• To enhance the safety profile of vaccination by defining at-risk populations.
• To provide a framework for predicting and potentially mitigating post-vaccination autoimmune events.

Main Methods:

• Literature review and expert consensus on ASIA.
• Definition and categorization of susceptible populations based on pre-existing conditions and genetic predispositions.
• Analysis of potential triggers for ASIA in the context of vaccine components.

Main Results:

• Four distinct groups of individuals at higher risk for vaccination-induced ASIA were identified.
• These groups include patients with prior post-vaccination autoimmune phenomena, a history of autoimmunity, or allergic reactions.
• Individuals with a predisposition to autoimmunity, such as family history or autoantibody carriage, are also at risk.

Conclusions:

• Vaccination-related ASIA is uncommon but predictable in certain individuals.
• Identifying susceptible populations allows for targeted risk assessment and management.
• Further research can refine criteria for identifying individuals who may benefit from specific vaccination strategies or monitoring.