How do rats detect tuberculosis?
Sarah Oconnor
Updated on February 26, 2026
These large and long-lived rats, which are native to much of Africa and have an excellent sense of smell, detect TB by sniffing sputum samples.
Can rats detect cases of tuberculosis?
New research shows that rats can detect up to 70 percent more cases of tuberculosis in children than standard smear tests. The findings may help to treat a significant number of children who have previously been overlooked.
How do rats smell TB?
In Sub-Saharan Africa, the continent with a high TB-burden, researchers are applying a new TB detection tool using African giant pouched rats (Cricetomys gambianus) to identify TB patients. By smelling patient sputum, they presumably recognise TB-specific VOCs profile.
Why are rats used to detect TB?
It is the same principle applied to detecting land mines, only the rats are trained to recognize the scent of specific molecules that reflect the presence of the tuberculosis germ—not the explosive vapor associated with land mines. To keep the animals motivated, positive samples are mixed in with the unknown samples.
Can rats smell tuberculosis?
African Giant Pouched Rat. The African Giant Pouched Rat (Cricetomys gambianus). This incredible rodent has been trained to smell tuberculosis and land mines in certain areas of Africa.
What can rats detect?
Rats can smell tuberculosis. Dogs can smell cancer. Now they’re being trained to save your life.
Can rats smell diseases?
Rats, apparently, can smell tuberculosis. In fact, not only can they smell it, but they’re also significantly better at sniffing out the illness than existing tests that doctors use to test for the disease in children.
What diseases can rats smell?
Rats can smell tuberculosis.
Can rats smell you?
Their strong sense of smell helps them locate food so that they waste no time in gaining access to it. They’ll be able to detect the scent of large birds, cats, and even humans when it matters the most. Scents are also important when it comes to reproduction for rats.
Can dogs smell tuberculosis?
The tumour turned out to be malignant. Researchers began to train and test a small number of dogs to detect specific types of cancer in specimens derived from people, like urine, sweat and breath.
What diseases can rats detect?
What are the symptoms of rat fever?
Symptoms and signs of streptobacillary RBF include:
- Fever.
- Vomiting.
- Headache.
- Muscle pain.
- Joint pain or swelling (about 5 in 10 people with RBF have this)
- Rash (occurs in about 3 out of 4 people with RBF)