It is imperative, therefore, that parents of young children understand the importance of maintaining a schedule of vaccinations for their children, and that adults recognize the importance of timely booster doses of selected vaccines.9 A recent article in the Canadian Journal of Public Health observes that: Ever since the advent of pediatric vaccination, individuals have expressed concerns about b [...] Health care professionals argue that the dangers of vaccine-preventable diseases are many times greater than the risks of a serious adverse reaction to the vaccine.13 Vaccines used in Canada are approved and licensed by the Bureau of Biologics and Radiopharmaceuticals of the Health Protection Branch, Health Canada. [...] In the case of a child who is unable to understand the nature and consequences of the proposed treatment, parental consent is ordinarily required in Saskatchewan and other provinces in which vaccination is not mandatory. [...] The plaintiff must prove that the injury was caused by the defendant’s acts or omissions, and that the defendant's behaviour fell short of the required standard of care. [...] The Committee must request the opinion of a specialist in immunology when one of the members of the Committee is of the opinion that it is necessary to do so to establish causation.