African pouched rat, WikimediaThe Belgian NGO Apopo is on the hunt for the life-threatening bacterium that causes tuberculosis (TB), and it is finding it using an unlikely helper—the African giant pouched rat, so named for its paunchy cheek pouches. After a bit of training, the rats can identify a distinctive TB smell—caused by organic compounds the bacterium produces in infected samples—in a fraction of a second, tackling as many as 1,680 samples per day, The Hindu reported. To put that in perspective, a trained lab tech can screen about 40 samples per day, a number that takes a pouched rat just 7 minutes.
The organization has been using the rats as a secondary screening method in hospitals, screening more than 97,000 samples and upping detection rates by as much as 23 percent. The success of the project caught the attention of the Mozambique government, which has asked Apopo to set up a similar screening effort in the country. “We are in the process of setting up a laboratory and training handlers,” Apopo representative Tess Tewelde told The Hindu. “The program will kick in by December.”
The projects add to the growing number of animals being used to detect disease. Dogs, for example, are being trained to identify and even differentiate among a variety of human cancers. Bees have also showed promising abilities in recognizing TB volatiles.
And the ...
