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Image: Cryptosporidium parvum stained with Crypto CEL IFA
Testing for both Cryptosporidium and GiardiaIn addition to products specific for Cryptosporidium or Giardia, Cellabs has a combined product, the Crypto/Giardia CEL, which detects both species. Identification of the Cryptosporidium and Giardia is made using fluorescence and morphological differences between the species. Giardia cysts can be clearly seen as larger parasites, approximately 7-10 microns in width and 10-15 microns in length compared to Cryptosporidium oocysts which are smaller around 4-6 microns in size. Not only does using the Cellabs Crypto/Giardia CEL provide the user with the convenience of detecting both organisms in one product, it is also economical giving the user a microscopy result after 30 minutes of incubation.
Image: Cryptosporidium oocysts and Giardia cysts stained with the Cellabs Crypto/Giardia IFA kit.
Cellabs produces a number of specialised products for Cryptosporidium and Giardia. We have recently developed a 15-minute Cryptosporidium stain specifically for use in water testing. This can be provided as a reagent with Evans Blue or without Evans Blue as a counterstain. Cellabs has also developed an equivalent product for Giardia and Crypto/Giardia product range. The Giardia reagent can be purchased as a concentrated (10x concetrate) product for special water testing methods.