TB 'breathalyser' could be available in two years
Steve Connor is the Science Editor of The Independent. He has won many awards for his journalism, including five-times winner of the prestigious British science writers’ award; the David Perlman Award of the American Geophysical Union; twice commended as specialist journalist of the year in the UK Press Awards; UK health journalist of the year and a special merit award of the European School of Oncology for his investigative journalism. He has a degree in zoology from the University of Oxford and has a special interest in genetics and medical science, human evolution and origins, climate change and the environment.
Tuesday 08 November 2011
A hand-held breathalyser for detecting tuberculosis infection could be available in prototype form within two years, scientists said.
A team of Indian scientists have won a $950,000 (£600,00) grant to build a prototype "electronic nose" by the end of 2013 which will detect the early stages of the respiratory disease, which claims nearly 1.7 million lives a year worldwide.
The TB breathalyser works by detecting the presence of about half a dozen biological chemicals in the air expelled from someone's lungs. These form a reliable signature of TB infection, said Peter Singer, chief executive of Grand Challenges Canada, with is part-funding the development with the Bill and Melinda Gates Foundation.
"The scientists have proven that patients with TB have a different signature on their breath compared with people who do not. Now they are validating it and putting it into a machine," Dr Singer said.
It is estimated up to 400,000 lives a year could be saved in the developing world by the early diagnosis and treatment of TB. Ranjan Nanda, one of the scientists in New Delhi, said: "Our goal is to make the electronic nose widely available in poor, remote areas where tuberculosis often breeds and spreads, devastating so many lives."
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