B.C. reports more than 20 COVID-19 cases for 6th time in a week The first samples in March found two of 869 specimens were positive, for a prevalence of 0.28 per cent, while the May sample found a prevalence of 0.55 per cent.Health Minister Adrian Dix described the estimated infection rate as “very low” and says it shows the effectiveness of British Columbia’s public health measures and co-operation of the public.“It reinforces the fact that we’re on the right track,” Dix says.“Of course, this is as the study suggests a dual-edged question, a low level of transmission but also very few people with antibodies to deal with potential future spikes of COVID-19.”If the study’s prevalence rate is applied to the whole provincial population, it.