Four confirmed cases of the disease have been found in NSW but the state's health service has denied claims of confirmed cases in the MIA.

Some MIA residents have been subject to isolation and testing for the virus - including Griffith teenager Emily Adamson, who visited China in January - but a confirmed case of the disease has not been found in the area.

A spokesperson for Murrumbidgee Local Health District said while none of the confirmed cases have been found in regional areas, this does not mean that they are unprepared.

"The MLHD's public health unit works closely with clinicians in preparing for public health emergencies, including exercising various scenarios to maximise preparedness," the MLHD spokesperson said.

Data from the World Health Organisation indicates the disease has spread to 26 countries and 71,432 cases have been confirmed as of 2am on February 18, with 36 cases under investigation in NSW and 1,186 potential cases cleared.

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Chief Health Officer at NSW Health Dr Kerry Chant said all four confirmed cases in NSW were isolated after diagnosis and pose no ongoing threat of transmitting the infection.

"I ask the public to be aware of the facts about the novel coronavirus and take a moment to investigate unverified claims before they share them with others," Dr Chant said.

"Outbreaks of infection among people is always a public health concern however the situation in Australia is different.

"At this time we have a small number of cases and no evidence of transmission in the community."

Health workers in hospitals and community-based GPs have also been issued advice to help them identify any cases and apply careful infection control measures to prevent the spread of the disease.

Those wishing to learn more about the disease can do so by visiting here.