Peel's Medical Officer of Health has signalled that the region could be close to hitting an important milestone.

On Wednesday, Dr. Lawrence Loh told reporters that Peel Region is halfway to reaching herd immunity, and he went on to tell 680News that the region could reach that goal in a matter of five to six weeks.

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"We have now delivered over half a million doses [...] and we are halfway to herd immunity, but our efforts must continue if we wish to return to normalcy," Loh told reporters Wednesday.

According to the World Health Organization, herd immunity occurrs "when a population is immune either through vaccination or immunity developed through previous infection." Dr. Loh says this will be achieved when 70% of Peel's population has been vaccinated — that's 1.1 million residents, according to reports by 680News.

As of Thursday, April 29, Peel Region has administered one vaccine dose to a total of 397,960 residents.