A woman aged in her late 70s with flu-like symptoms was transported to Bathurst Hospital for coronavirus testing on Thursday, NSW Ambulance has confirmed.

The report came as the Western NSW Local Health District took to social media to assure the public Orange Health Service was operating normally.

The assurance on the LHD's Facebook page followed rumours about potential coronavirus cases and a lockdown at the hospital.

When asked if there had been any other confirmed coronavirus cases in the Central West, a NSW Health spokesman said he was unable to "comment on potential cases or their locations".

An LHD spokeswoman said due to the large number of people being tested for coronavirus, results could take up to 48 hours to be received.

NSW Ambulance Inspector Kathy Golledge said a 77-year-old woman was transported to Bathurst Base Hospital with flu-like symptoms and paramedics "take precautions regardless".

"Because she's got symptoms we treat for the worst and hope for the best," she said.

Inspector Golledge said it was important for the public to remember that while there have been no confirmed cases of COVID-19 in the region, that people should listen to advice from NSW Health.

"The flu is going around and people need to take precautions and self-isolate," she said.

"If you do need medical help alert your GP or hospital prior to you arriving so they can take precautions."

Coronavirus testing has also been conducted on other people in the Central West, however, there have been no confirmed cases, the LHD told Australian Community Media recently.

In NSW, the number of people with COVID-19 increased to 78 on Thursday afternoon, with a further 1831 cases under investigation.

NSW Health said an additional 13 coronavirus cases had been confirmed in the 24 hours to 1pm on Thursday.

NSW Health has urged anyone who has travelled overseas during the past 14 days to self-monitor for symptoms, practise social distancing as much as possible and immediately isolate yourself if you become unwell.

Social distancing means separating yourself from other people as much as possible when you're in public places, and avoiding crowded places. Practically, you should:

During the 14 days you are asked to practise social distancing, you can travel to work or school using public transport if you have no other way of travelling there. Please try to separate yourself from other passengers as much as possible.

Social distancing is an effective measure, but it is recognised that it cannot be practised in all situations and the aim is to reduce potential for transmission.

It is important that everyone does their part to limit spread of COVID-19. This will help protect vulnerable people in our community and reduce the burden on our hospitals.

Should widespread transmission occur a range of public health measures will be considered, including the approach to large-scale events. If you have returned from overseas, you should avoid large public gatherings. Otherwise, people should go about their business as usual. That includes attending public events. The Australian Health Protection Principal Committee will provide this advice.

Call your doctor or Healthdirect on 1800 022 222 or if your symptoms are severe go to your hospital's emergency department and advise if you have been overseas.

If you have symptoms it is important that you do not go to work, school/university/childcare, the gym, or public areas, and you should not use public transport, taxis, or ride-sharing services.

If you need to seek medical care wear a surgical mask if available when attending.