Elek test

El·ek test

(el-ek test)
An immunoprecipitation test used to determine whether a strain of Corynebacterium diphtheriae produces diphtheria toxin.
References in periodicals archive ?
diphtheriae tox gene), determine their biotypes (2 variant gravis and 12 variant mitis), and characterize their toxin production using the Elek test (positive for 9 isolates).
However, a modified Elek test yielded a negative result (8).
ulcerans, suggesting a higher sensitivity of cytotoxicity assays than that seen with the Elek test (15).
We determined DT production using a modified Elek test (6); we used C.
Diphtheria toxin production was evaluated by a modified Elek test (4).
FRC24 is a toxigenic isolate; toxigenicity was confirmed by both tox gene detection and Elek test (1).
Results from use of the modified Elek test (6) indicated that all feline isolates were negative for production of diphtheria toxin; however, an atypical precipitation was observed after 36 h of incubation.
ulcerans tox-specific PCR (4), and the Elek test as described previously (4,5).
Toxigenicity was determined by both dtx polymerase chain reaction and Elek test (2).
Easy-to-perform modified Elek test to identify Shiga-like toxin-producing diarrhoeogenic Escherichia colt.
Toxigenicity status was determined by the Elek test, as recommended by WHO (9), and by the polymerase chain reaction (PCR), which targeted both A and B subunits of the tox gene (10).
For some isolates, the Elek test was also performed; [ILLEGIBLE TEXT] negative.