WINNIPEG -- Three cases of variants of concern have been linked to Collège Miles Macdonell Collegiate, according to Manitoba public health officials. A provincial spokesperson tells CTV News public health investigations have confirmed that the infections were not acquired at the school and that there has been no evidence of in-school transmission. The province said the school will continue to follow established COVID-19 health protocols. A letter was sent to out on Saturday to parents and guardians of students attending the school, warning them that at least one individual with a variant of concern was at the school while they may have been infectious.