![John Elflein](https://cdn.statcdn.com/static/../CMS/contactperson/ERI1013_1592297846.jpg)
Blood transfusion-associated adverse reactions in the U.S. in 2019 and 2021
In 2021, there were an estimated 45,142 blood transfusion-associated adverse reactions in the United States that required any diagnostic or therapeutic intervention. This graph shows the estimated number of blood transfusion-associated adverse reactions in the United States in 2019 and 2021, by type.