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. 2003 Oct;41(10):4848–4851. doi: 10.1128/JCM.41.10.4848-4851.2003

TABLE 2.

Synopsis of test results for C. diphtheriae NCTC 10648, C. ulcerans A2911, and C. ulcerans A6361

Strain Results by indicated test
tox PCR Elek ICSa Cytotoxicity (titer)
C. diphtheriae NCTC 10648 Positive Positive +++ 1:12,800
C. ulcerans A2911 Positive Positive ++ 1:160
C. ulcerans A6361 Positive Negative + Negative
a

ICS, immunochromatographic strip; +++, strong visible band; ++, medium visible band; +, weak visible band.