Two ways of surviving hospital induced infection was published in 2008, where there is a picture of a Tyvek suit. The idea was to put on a germ-resistant suit at home before going to the hospital for voluntary surgery. The surgeon would only open the suit at the point of incision. This would prevent germs getting into the wound, and thus avoid hospital induced infections.
At the moment the CDC is purchasing special kits to have instantly available to send to hospitals where they have an Ebola patient. The suit pictured below would not be sufficient protection for working as a nurse for this disease.
There are more total covering suits, like the Lakeland Interceptor Fully Encapsulated Front Entry Level A Vapor Protective Suit, Disposable, Blue.
Today there are ads on Google for protective suits that are intended to protect the wearer from external infections. The white suit pictured above isn’t as completely covering as some of the newer models like the blue one. The head, hands, and feet are exposed, and the zipper may not be totally sealed, but the new ones are better. DuPont TY122S Disposable Elastic Wrist, Bootie & Hood White Tyvek Coverall Suit 1414, Size XLarge, Sold by the Each
In a short term desperate situation you could make a hazmat suit out of garbage bags and duct tape.