ROCHANA CHUTHANONDH, B.SC.; BENCHA PETCHCLAI, M.D.; WISITH BENJAPONGES, M.D.
To the editor: Moore and Mohr (1) reported in 1952 that 100% of malarial infections resulted in biologic false-positive serologic tests for syphilis. Antigens used at that time were relatively crude, and the serums were tested for reagin, the nonspecific antibody that occurs in syphilitic infection. The report did not mention the chronological stages of malarial infection. Olansky and associates (2) made a careful study with the VDRL test in 130 volunteers infected with Plasmodium vivax; biologic false-positive tests occurred at low titer in four cases. The VDRL test is a reagin test with a more purified antigen. We have
CHUTHANONDH R, PETCHCLAI B, BENJAPONGES W. VDRL in Malaria. Ann Intern Med. 1972;77:660–661. doi: 10.7326/0003-4819-77-4-660_2
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Published: Ann Intern Med. 1972;77(4):660-661.
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