And in relation to incidence rates for Canada, no such data yet is available. Significant changes in incidence rates of Alzheimer's have been observed in the U.S., U.K., Sweden, Finland, the Netherlands and a couple of other countries, no rigorous epidemiological studies have yet explored such rates in Canada (again, your advocacy group cite is prevalence, not incidence). Despite your argument regarding B12 deficiency, it would be surprising that Canada is not experiencing a significant decline in incidence rate. But nor is Hermesacat's statement supported.