In the past, blood clotting concentrates were not screened for viruses, including HIV and Hepatitis. As a result, many individuals with bleeding disorders contracted the viruses through contaminated blood products. In fact, prior to 1985 many hemophiliacs became infected with HIV, the virus that causes AIDS (Acquired Immune Deficiency Syndrome), through these contaminated blood products.

However, in the past 15 years, many changes have taken place with regard to product safety. Now, commercially prepared blood clotting concentrates have been screened for the presence of viruses such as HIV and Hepatitis. Different heating and pasteurization methods are now used by manufacturing companies who make blood clotting concentrates. These methods make the products free of the viruses they are screened for.

To learn about the specific screening process of your product manufacturer, please contact them directly.