Cases of acquired hemophilia A following COVID-19 vaccines: cogent safety signal or possible reporting/detection bias? Preliminary evidence from Tuscany, Italy.

Giuseppe RobertoOlga PaolettiSara FerraroGiulia HyeraciMassimo FranchiniRosa GiniDaniele FocosiMarco Tuccori

Published in: Pharmacoepidemiology and drug safety (2023)

These preliminary findings do not support the hypothesis of an increased incidence of AHA cases during the COVID-19 vaccination campaign. However, in 2021, the still ongoing healthcare access restrictions might have contributed to the low incidence of AHA and laboratory tests observed. Therefore, large-scale multi-database studies are warranted. This article is protected by copyright. All rights reserved.

Keyphrases

coronavirus disease
sars cov
healthcare
risk factors
adverse drug
respiratory syndrome coronavirus
emergency department
loop mediated isothermal amplification
health information
electronic health record