Ontario residents aged 50 and older can book COVID booster shots In the other, a Cambridge Roadrunners team played in a tournament that was held in the Ajax-Markham area and that has been connected to an outbreak of 20 cases.On Saturday, Waterloo Public Health said it was following up with players from both teams as well as close contacts to advise them to stay home and quarantine until test results are available.The agency says it is awaiting results of whole genomic sequencing but it appears likely that these are Omicron clusters.Waterloo Public Health says that four cases connected with the Hespeler Shamrocks and another linked to the Cambridge Roadrunners have screened positive for a marker that increases the likelihood that it’s the.