Elek's gel precipitation test is done for:: (A) Corynebacterium diphtheria, (B) Salmonella choleraesuis, (C) Clostridium botulinum, (D) Diphtheroids
Answer is A. Elek's gel precipitation test is done for Corynebacterium diphtheriae. Detection of C. diphtheriae: Elek's gel precipitation test - Double diffusion in two dimensions (Ouchterlony procedure), Detection of tox gene by PCR. Detection of diphtheria toxin by ELISA or immunochromatographic test (ICT). Cytotoxicity produced on cell lines.