Britain has to 'strengthen' its preparations for the possibility of a new pandemic labelled 'Disease X', according to experts, after a string of infectious diseases hit the UK in the past six months.
After traces of polio was found in sewage samples in parts of London for the first time in 40 years this week, an expert in diseases has said that after a series of health 'events' in the past six months, there is likely something 'on the horizon'.
The UK detected a strain of H5 bird flu in a human in January this year, in the South West of England, and in February, three cases of Lassa fever - one of which died from the disease.