ABO and Rh Blood Group Systems
Q: Which of the following blood types is considered the universal donor for red blood cells?
Did You Know?
Human T-lymphotropic virus type 1 (HTLV-1) is a human retrovirus. Unlike HIV (another retrovirus which causes cancer indirectly via immunodeficiency), HTLV-1 directly transforms T-cells and is the accepted causative agent of Adult T-cell Leukemia/Lymphoma (ATLL).
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