Dear Sir,
We would like to share ideas on the publication “Anti-SARS-CoV-2 vaccination does not influence anticoagulation levels in stable long-term warfarin treatment”1. Lotti et al. concluded that “No influence on the quality of OAT was detected … thus confirming the stability of anticoagulation levels”1. We agree that the interaction between COVID-19 and warfarin is an interesting issue. Conceptually, if there is a linked biomechanism, there should be an interaction. Based on available evidence, there is no biological process of the immunogenesis by COVID-19 that is linked to the pharmacological action of warfarin.



Rujittika Mungmunpuntipantip - Private Academic Consultant, Dimapur, India

Viroj Wiwanitkit - Dr DY Patil University, Pune, India

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