Examination of Homologies between COVID-19 Vaccines and Common Allergens: The Potential for T Cell-mediated Responses...

Area of Science:

• Immunology
• Allergology
• Virology

Background:

• The SARS-CoV-2 virus exhibits protein sequence homology with common environmental allergens.
• Understanding virus-allergen interactions is crucial for managing allergic diseases.

Purpose of the Study:

• To investigate potential cross-reactivity between mRNA COVID-19 vaccines (Pfizer-BioNTech and Moderna) and known allergens.
• To explore the implications for allergic conditions such as asthma and rhinitis.

Main Methods:

• Comparative analysis of protein sequences between SARS-CoV-2, vaccine components, and common allergens.
• Identification of shared epitopes and potential for T-cell mediated cross-reactivity.

Main Results:

• Identified 7 common allergens with potential cross-reactivity to the Pfizer-BioNTech vaccine.
• Identified 19 common allergens with potential cross-reactivity to the Moderna vaccine.
• Included grasses, dust mites, and molds among the cross-reactive allergens.

Conclusions:

• COVID-19 mRNA vaccination may induce T-cell cross-reactivity with environmental allergens.
• This cross-reactivity could potentially influence allergic asthma and allergic rhinitis.
• Further research is needed to determine the clinical significance of these findings on allergic disease severity and symptoms.