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. 1993 Sep;31(9):2519–2522. doi: 10.1128/jcm.31.9.2519-2522.1993

False-negative cerebrospinal fluid cryptococcal latex agglutination tests for patients with culture-positive cryptococcal meningitis.

B P Currie 1, L F Freundlich 1, M A Soto 1, A Casadevall 1
PMCID: PMC265794  PMID: 8408579

Abstract

Three cases of false-negative cerebrospinal fluid latex agglutination test results for patients with culture-positive cryptococcal meningitis are reported. False-negative results occurred in settings of low cryptococcal antigen concentrations in cerebrospinal fluid and were dependent on the latex agglutination test kit used. Investigation of each case revealed that prozone phenomena or interference from bound antibody or protein could not account for the false-negative results.

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Selected References

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