[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]The town of Saint-Chrysostome, Que., where the house parties were held last month, passed a similar rule Friday mandating mask-wearing inside all commercial businesses.Quebec’s public health director, Horacio Arruda, said Friday the house parties were the source of the outbreak.Health officials also say they believe the parties are connected to a series of infections that forced several businesses to close in Mercier.Quebec reported 100 additional cases of COVID-19 on Friday, the second consecutive day new cases topped the 100 mark..