Immediate hypersensitivity to #COVID19 vaccines: Focus on biological diagnosis #LongCovid (basophil activation test (BAT)) https://t.co/SEJgT2ZAQA
https://t.co/WWxYsVNUt2 "In our group in Paris, preliminary data in 30 patients with anaphylaxis after the first injection of a mRNA vaccine confirm that BAT can be positive while skin tests are negative (Nicaise-Roland P, Soria A et al., unpublished resu
https://t.co/WWxYsVNUt2 "However, most authors agree in concluding that in the event of an anaphylactic reaction after injection of an mRNA vaccine, BAT is more frequently positive than skin tests confirming an activation mechanism which would not necessa
https://t.co/WWxYsVNUt2 "The basophil activation test (BAT) using CD63 and/or CD203 as activation markers by flow cytometry was developed as early as January 2021 to explore immediate hypersensitivity to mRNA vaccines."