COVID-19 outbreak declared at Yellowknife's N.J. Macpherson School A person connected to a school in Yellowknife tested positive for COVID-19 without obvious source of infection, according to public health. Child and youth extra-curricular activities in the city are suspended until further notice and the school will close for two weeks. Social Sharing CBC News · Posted: May 02, 2021 6:56 AM CT | Last Updated: May 2 A person connected to a school in Yellowknife tested positive for COVID-19 without obvious source of infection.(NIAID Integrated Research Facility/Reuters) A person connected to N.J. Macpherson School in Yellowknife has tested positive for COVID-19, prompting the chief public health officer to declare the first school outbreak in the N.W.T. and to stop in-person learning at that school for two weeks.