TORONTO -- A person who travelled from Toronto Pearson International Airport to the Hamilton GO Centre last week has tested positive for COVID-19, Metrolinx has warned.

On Thursday, the transit agency said the GO bus passenger was aboard the route 40 vehicle on March 12 at 6:10 p.m.

We've been informed that a person travelling on a route 40 GO bus from Pearson to Hamilton GO Centre on Mar 12 at 6:10pm has tested positive for #COVID19. We wish them a speedy recovery. Our driver spoke with public health, has no symptoms & is self-isolating as a precaution. 1/2 — Metrolinx (@Metrolinx) March 19, 2020

Metrolinx said its driver has spoken with public health officials and is currently self-isolating as a precaution.

“Out of an abundance of caution, the bus was removed from service and thoroughly disinfected,” the transit agency added.

Out of an abundance of caution, the bus was removed from service & thoroughly disinfected. Hamilton Public Health has determined the risk is low & does not need to speak with customers. Customers with concerns about their health should speak with their healthcare provider. 2/2 — Metrolinx (@Metrolinx) March 19, 2020

On March 13, Metrolinx announced reduced service on GO trains and buses, as well as the UP Express, as ridership continues to decline due to the ongoing COVID-19 pandemic.

The transit agency said they had seen a steady decline since January, and added that they expect that to continue with all the event cancellations and school closures now in effect.

FULL LIST: What's closed and cancelled in Toronto amid COVID-19 pandemic

Metrolinx CEO Phil Vester said at the time that an average of 200,000 people use their service each day, but ridership has fallen to about 40 per cent or 80,000 riders per day.

There have been 214 cases of COVID-19 in Ontario thus far, including one death related to the virus.