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# Serological Tests for Transfusion Risks Guide
- URL: https://www.fdaweb.com/serological-tests-for-transfusion-risks-guide/
- Published: 2020-02-06T12:00:00.000Z
- Updated: 2026-09-14T16:02:08.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5146030

*Federal Register* notice: FDA has made available a final guidance entitled “Use of Serological Tests to Reduce the Risk of Transfusion-Transmitted Human T-Lymphotropic Virus Types I and II (HTLV–I/II).” The document provides recommendations about using serological tests to reduce the risk of HTLV–I/II transmission by blood and blood components. To view the notice, click [here](https://www.govinfo.gov/content/pkg/FR-2020-02-06/pdf/2020-02373.pdf?ref=fdaweb.com).