The new test was trialled on 50 healthy volunteers who attended a contact-tracing clinic in London after having been exposed to TB in varying degrees.

BBC: More accurate TB test unveiled

Is the private sector willing to provide such expertise, to perform 'contact-tracing', the unique NHS service which helps us track the spread of pathogens and identify outbreaks?

BBC: Sexual healthcare 'at risk from NHS changes'

It would be so easy for the 25, 000 people in the UK who do not know they have HIV to become 50, 000 as a result of non-targeted testing and the demise of contact-tracing.

BBC: Sexual healthcare 'at risk from NHS changes'

"We are tracing the bus that he (traveled on), and we have requested the company to contact the ministry so we can know who else was in the bus, " said Beth Mugo, public health minister.

CNN: SHARE THIS