oa South African Medical Journal - The incidence of the dangerous group O donor : results of the titration of one thousand consecutive sera

Volume 21, Issue 12
  • ISSN : 0256-9574
  • E-ISSN: 2078-5135



The anti-A and anti-B iso-agglutinin titre of 1,000 unselected group O donors has been investigated. Taking a titre of 1 / 200 as dangerous, 221 of the donors tested would be classified as unsafe for transfusing patients belonging to groups other than O.

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