The slow pace of testing for COVID-19 infection in Ontario is raising concern among experts that the province is failing to capture the true spread of the coronavirus.

Ontario's official numbers for positive COVID-19 tests fall short of capturing the true extent of the coronavirus' spread, according to infectious disease experts.

Nearly 11,000 Ontarians who have been tested for COVID-19 are waiting for their results, as the backlog at the province's public health lab continues to grow. 

The number of COVID-19 tests completed in Ontario each day has dwindled steadily over the past week, raising concerns that the province is failing to capture the true spread of the coronavirus.

Ontario Premier Doug Ford blasted the "unacceptable" number of daily COVID-19 tests being done in the province, as the province confirmed 550 new cases of COVID-19 on Wednesday.