Meetings at Sandown, on the outskirts of Melbourne, and at Sydney's Warwick Farm were both abandoned half finished on Wednesday due to the COVID-19 outbreak sweeping the planet.

Thursday's race meetings in NSW and Victoria have also been cancelled as they await the test results for a Melbourne-based jockey, which are expected by Friday.

The jockey hasn't displayed any symptoms since they were on the same March 12 commercial flight as someone who has since tested positive to the coronavirus.

That jockey then rode at Sydney's Golden Slipper Day on Saturday, which is why both states went into lockdown.

The jockey has been tested as a precaution and racing will resume if the test negative.

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Canberra trainer Norm Gardner had travelled to Warwick Farm with Caccini, but the meeting was abandoned one race before the five-year-old mare was due to run.

Fellow Canberra trainer Trevor McIlrick had Who's Knocking set to jump in the previous race before it was called off.

Gardner backed all the measures that been introduced to help racing continue for as long as possible.

He was training when the equine influenza outbreak occurred in 2007 and praised Canberra Racing in ensuring there wasn't a case in the ACT back then.

Gardner hoped Caccini would be able to run in Wagga Wagga if racing resumed.

"I think we're doing all we can and racing is doing a good job to try and keep going," he said.

"Everyone from the CEO to the staff to the trainers, everyone is on tenterhooks at the moment not knowing from day to day what's going to happen. All we can do is take it day by day."

The next meeting planned for Canberra's Thoroughbred Park is Friday week.

It will be their first meeting since their inaugural two-day Canberra Carnival. Queanbeyan also has a meeting scheduled for April 6.

"At this stage we're preparing as if we are racing with participant-only race meetings," Canberra Racing chief executive Andrew Clark said.

"We're communicating regularly with our industry staff and members, and at this stage it's all systems towards racing on that day. Provided the advice is we can."