The use of methanol extract of Leptospira interrogans in complement fixation tests for leptospirosis

Autor: Matilde Cota Koury, Cisalpino Eo, Rangel Hde A
Rok vydání: 1991
Předmět:
Zdroj: Canadian Journal of Microbiology. 37:455-458
ISSN: 1480-3275
0008-4166
DOI: 10.1139/m91-075
Popis: Methanol extracts were obtained from L. interrogans serovars icterohaemorrhagiae and canicola and L. biflexa serovar patoc. Human sera from 167 normal individuals and 40 patients with different infectious diseases tested by complement fixation tests showed negative reactions. Sera from 100 patients with a suspicion of leptospirosis were tested by complement fixation tests and microscopic agglutination reactions. Agreement of 84% was found for those two reactions. Positive microscopic agglutination tests at a dilution 1:20–1:400 with negative complement fixation tests were observed in 5% of patients and negative microscopic agglutination with complement fixation tests in the range of 1:20–1:1280 were observed in 11% of the cases. Key words: diagnostic, methanol extract, complement fixation test.
Databáze: OpenAIRE