Diagnostic Findings [Last Modified: ]
Giardiasis
[Giardia intestinalis (syn. Giardia lamblia)]
Causal Agent Life Cycle Geographic Distribution Clinical Features Laboratory Diagnosis Treatment

Molecular Diagnosis

Agarose Gel - PCR for Giardia
A

A: 2% agarose gel analysis of a PCR diagnostic test for detection of Giardia DNA.  PCR was performed using primers JW1/JW2.1

  • Lane S: Molecular base pair standard (100-bp ladder).  Black arrows show the size of standard bands.
  • Lane 1: Giardia intestinalis positive fecal specimen.  The red arrow shows the diagnostic band for G. intestinalis (size: 183 bp).

Reference:

Weiss JB, van Keulen H, Nash TE. Classification of subgroups of Giardia lamblia based upon ribosomal RNA gene sequences using the polymerase chain reaction. Mol Biochem Parasitol 1992;54:73-86.
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