The Health Protection Agency has confirmed that another case of Legionnaires' disease has been identified, in connection with the outbreak at Stoke on Trent.
It brings the number of confirmed cases from 19 to 20. The latest patient has been discharged from hospital and is recovering at home.
According to the University Hospital of North Staffordshire, three patients remain in a stable condition in hospital.
People who contracted Legionnaires' disease this year are calling for a public inquiry after a fatal outbreak in Stoke-on-Trent.
A second person has died after an outbreak of Legionnaires disease in Stoke-on-Trent.
Officials believe the Legionnaires outbreak at Stoke On Trent can be traced to a hot tub in a Stoke warehouse.