Although tuberculosis (TB) cases across the country have stabilised, Public Health England says cases in London are continuing to rise at a worrying rate. New figures show 3,426 cases were reported in the capital last year - making up 40% of cases nationally.
The majority of London cases were among people born outside of the UK and many of these were young adults aged between 25 and 44.
More top news
The mayor's pledge to the Tory conference was immediately condemned as 'pointless' by opponents.
Did the International Space Station take a wrong turn?
It's enough to put you off your dinner. Here's what they found inside.