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‘Latent’ Tuberculosis? It’s Not That Common, Experts Find- Lalita Ramakrishnan, Dept of Medicine, University of Cambridge

last modified Sep 21, 2018 04:31 PM
Active infections kill 4,000 people a day worldwide, more than AIDS does. But the notion that a quarter of the global population harbors silent tuberculosis is “a fundamental misunderstanding.”

Although experts frequently assert that nearly 1.7 billion people carry dormant tuberculosis worldwide, that figure may be a “gross exaggeration” of the real threat, a recent study concludes.

The study, published last month in the journal BMJ, found that nearly everyone who falls seriously ill with TB does so within two years of getting infected. So-called latent infections only rarely become active, even in old age. 

Researchers “have spent hundreds of millions of dollars chasing after latency, but the whole idea that a quarter of the world is infected with TB is based on a fundamental misunderstanding,” said Dr. Lalita Ramakrishnan, a tuberculosis expert at the University of Cambridge and one of the study’s authors.

The new Jeffrey Cheah Biomedical Centre - CITIID

See the home of CITIID being built in this fantastic time-lapse video. From basement to water tight in 17 months. The Jeffrey Cheah Bimedical Centre is now complete and home to the Cambridge Immunology Network Coordinator.


‘Fibroblast’ has been developed from a conversation between Harold Offeh and Dr Alice Denton, a scientist based at the Babraham Institute and a member of the Cambridge Immunology Network. Offeh was particularly interested in the character and roles played by particular cells in the immune system, as well as the immune system’s role as a primary source of protection and care. The film takes as a starting point microscopic images of broblast cells, an area of research for Dr Denton.

FCEs provide interdisciplinary training programmes for students, fellows and continuing education physicians through FOCIS assisted opportunities

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