Moving to remote learning expected to prevent 637 COVID-19 cases in Hamilton, data indicates Moving from in-person to remote learning is expected to prevent 637 COVD-19 infections in the city, according to Hamilton Public Health data. Social Sharing 7 union leaders sent a letter to public health and said in an interview it has failed schools Posted: Apr 16, 2021 6:16 PM ET | Last Updated: April 16 Unions representing Hamilton education staff say public health should do more to protect workers and students.(Bobby Hristova/CBC) Hamilton Public Health data indicates moving from in-person to remote learning is expected to prevent 637 COVD-19 infections in the city. Dr. Dominik Mertz, Hamilton Health Sciences medical director of infection prevention control, shared the data during a hospital town hall on Thursday.