MRSA is dangerous as it gets in the bloodstream through wounds.

James Chadfield's wife, Peggy, was treated for the bug at Derby City General Hospital after initially being treated at the Derby Royal Infirmary.

The 80-year-old, from Wirksworth later died from a heart attack.

Doctors say they are doing all they can to prevent patients catching these so-called super bugs.

She was only in the nursing home for 22 hours..she was re-admitted to the hospital and they said to me she's definitely got this bug Dave Topliss, husband

Southern Derbyshire NHS Trust said it could not comment on individual cases but it would look into his concerns.

The Trust also said it had stringent infection controls, despite this Mr Chadfield said standards of cleanliness were poor.

Mr Chadfield's concerns are backed up by Dave Topliss from Mickleover, who contacted the BBC to say his wife was also diagnosed with the bug after receiving treatment at a hospital, this time the Derby City General Hospital.

He told the BBC how staff at a nursing home recognised the symptoms hours after his wife was discharged.

Mr Topliss said: "She was only in the nursing home for 22 hours.

"She was re-admitted to the hospital and they said to me she's definitely got this bug.

Poor cleaning is said to be to blame for the spread of the bug

"They thought she'd been admitted out of a nursing home."

She was later re-admitted to hospital.

He is now demanding an apology and an inquiry.

David Bullock, a consultant microbiologist at the Derby Royal Infirmary defended standards of cleanliness with staff doing their best to reduce the risk.

"I'm very sorry to hear some of the experiences people have been through.

Little risk

"Hospital-acquired infection is always going to be with us but we do our best to reduce the incidence of it.

"In Derby we have a very good record for keeping a low instance of hospital-acquired infection, despite some of the awful experiences of people I've heard on BBC Radio Derby's Breakfast Show this morning."