The second test for a New Zealand health worker has come back negative for Ebola.

The worker had recently returned from Sierra Leone where she'd been working as part of the international response to the disease.

Health Minister Jonathan Coleman says the patient's now been officially cleared of having Ebola following the second negative test result.

He says the workers remains in a stable condition and will continue to be cared for in Christchurch Hospital.

The patient’s partner has now been cleared to return to work.