NEW YORK - An American doctor who became the first person to be diagnosed in New York with Ebola has been cured of the potentially deadly virus and will be discharged on Tuesday, officials said.

Craig Spencer’s recovery means there are no more known cases of the virus in the United States.

“After a rigorous course of treatment and testing, Dr Craig Spencer - the patient admitted and diagnosed with Ebola disease virus at HHC Bellevue Hospital Center - has been declared free of the virus,” the mayor’s office said Monday.

The statement stressed that Spencer, who was infected with Ebola and treated in New York after caring for patients in Guinea, “poses no public health risk.”

The 33-year-old Spencer was admitted to Bellevue hospital and tested positive for Ebola on October 23.

New York is one of the busiest points of entry in the United States and the city has said repeatedly it is fully prepared for any possible case of the disease that has killed some 5,000 people, mostly in Sierra Leone, Guinea and Liberia.

So far the United States has treated nine Ebola victims. Only one of them, a Liberian man who contracted the virus in his home country in West Africa, has died.