Blog post January 25, 2017
Dr. Sack shows how to use the Crystal VC dipstick test
In many countries, public health workers have to wait days in order to obtain the results of a cholera diagnosis from a stool culture, which requires laboratory facilities. However, with the Crystal VC dipstick test, health workers can test a stool sample for cholera and receive a preliminary result in minutes and a confirmatory result in a few hours.
In this new video, Instructions for Using the Dipstick Test to Detect Vibrio Cholerae, I provide step-by-step instructions for the use of the Crystal VC dipstick test to test a fecal specimen for the presence of Vibrio cholerae. This easy-to-follow instructional video covers both the enriched and the direct methods and discusses the differences, as well as the advantages and disadvantages of each. The video also includes information on the materials needed to conduct the test, the contents included in the test kit and provides step-by-step instructions for carrying out the test.
The dipstick test should not replace culture tests but is meant to be used as an interim tool to rapidly detect and report cases and evaluate interventions. Additionally, the test can be implemented by varying levels of health workers at treatment centers, supporting their ability to rapidly detect and report cholera outbreaks.