A mother and child being treated for Ebola-like symptoms at the Victoria Hospital in London, Ont. have received negative results for the virus in preliminary blood tests, according to a spokesperson for the Middlesex-London Health Unit.

Preliminary blood samples from both patients, who were transferred to London from Waterloo Region, came back negative. But hospital officials are still waiting on further test results, which they expect in the next few days.

“This is encouraging news, yet we will remain vigilant as we and our partners continue to monitor this situation very closely,” said Dr. Chris Mackie, the medical officer of health for the Middlesex-London Health Unit in a release.

"There are other potential reasons for the symptoms we’re seeing, but until Ebola can be ruled out completely, the protocols and precautions currently in place at Victoria Hospital will continue.”

The mother and child were admitted to the hospital around 9:45 p.m. ET on Tuesday, and placed into isolation in a negative pressure room according to an online release from the hospital.

The patients' symptoms were not clear, but Mackie said they were "low level" and appear to have resolved, so it's unlikely the patients have the virus.

Patients in refugee program

According to Mackie, the mother and child were in Guinea, though he did not say how recently.

"These are people who came to Canada through a federal refugee relocation program, which is actually a very good thing, because it means that they're carefully monitored, they're screened," Mackie told Ontario Morning host Wei Chen early Wednesday. "They have all resources supporting them to be healthy both before they leave their country of origin and also after they arrive."

Because the patients were recent arrivals from West Africa, they were monitored by the Region of Waterloo Public Health unit as part of a local-provincial-federal process to monitor potential Ebola cases, though the public health unit said the individuals are "very low risk."

According to the Region of Waterloo, the patients began to show "minor symptoms of illness" and were transported by Waterloo Region Paramedic Services to the London hospital for assessment. The public health unit says all infection protocols were followed and there's no risk to the public or staff.

The hospital said in a tweet that there was "no impact to patient and visitor activity" as a result of the admissions.

Can't see the tweet on mobile? Read here

According to Mackie, there's no risk to the public in London, and the risk to the public in Waterloo Region is "exceedingly low."

The LHSC is one of 10 designated hospitals in Ontario that are set up to handle potential Ebola cases.

There have been no confirmed cases of Ebola in Canada.

In previous cases, including at least 10 in Ontario, patient samples were sent to the National Microbiology Lab in Winnipeg for testing.

The World Health Organization said earlier this week that there have been 22,828 cases and 9,152 deaths as a result of the Ebola outbreak, which has been heavily concentrated in Liberia, Sierra Leone and Guinea.