Modified Elek test improves in-vitro detection of diphtheria toxin
Edgar Badell, Sylvie Brémont, Marion Barbet, Virginie Passet, Chiara Crestani, Sylvain Brisse
The study modifies the Elek test to improve detection of diphtheria toxin in Corynebacterium species, identifying more toxigenic isolates previously classified as non-toxigenic.
bioRxiv · Mar 1, 2026 · PreprintMicrobiology