Tuberculosis is an airborne infection, mostly striking the lungs, that kills more adults in India than any other infection.

WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment

All inpatients at Papworth are now treated in negative pressure rooms to prevent the spread of airborne bugs and those with the infection are cared for away from the cystic fibrosis unit.

BBC: Cystic fibrosis bug 'can spread between patients'