With regard to Health Canada, the Public Health Agency of Canada, the National Advisory Committee on Immunization and the childhood vaccine schedule: (a) what vaccines are currently included on the routine childhood immunization schedule in Canada, including, for each product or combination product, (i) the antigens contained, (ii) the recommended ages of administration, (iii) the total number of doses, (iv) the usual number of injections per vaccine, (v) any differences in the schedule by province or territory; (b) what was the date of first authorization in Canada and the date of first inclusion on the routine childhood schedule, by province or territory, where applicable, for each vaccine currently or previously on the routine childhood schedule; (c) with respect to pre-authorization clinical trials for each vaccine that has ever been on the childhood schedule in Canada, (i) which products were evaluated in randomized, controlled trials using an inert placebo (for example, normal saline), (ii) for each such trial, what was the duration of formal safety follow-up after each dose, (iii) how many children were enrolled in each trial, by age group, (iv) for combination vaccines, how were safety signals attributed to individual antigens; (d) for vaccines that were not evaluated against an inert placebo, (i) what were the control comparators (for example, active comparator vaccine, adjuvant-only, other), (ii) what rationales did Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization rely upon in accepting those comparators for the purposes of safety and efficacy assessment; (e) since the authorization of the first routine childhood vaccine in Canada, have Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization commissioned, funded, or formally reviewed studies that examined (i) adverse events following the concomitant administration of more than one vaccine at the same visit in children, (ii) long-term health outcomes in vaccinated versus unvaccinated, or differently vaccinated, cohorts (now adults) and, if so, what are the titles, authors, years of publication, study designs, populations studied, and key findings of each such study; (f) what studies have Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization commissioned, funded, reviewed, or relied upon to assess potential associations between single or combination childhood vaccinations and (i) autism spectrum disorder, (ii) sudden infant death syndrome, including, for each study, the title, authors, year of publication, study design, population size and age range, vaccination exposure definitions (for example, specific antigens, timing, number of concomitant doses), comparator groups, primary outcomes, and key findings with respect to causation, risk elevation, or absence of association; (g) with respect to the early poliomyelitis vaccines used in Canada, (i) what testing identified contamination with Simian Virus 40, (ii) who conducted this testing, (iii) on which vaccine lots used in Canada was the presence of Simian Virus 40 confirmed, (iv) what evidence was available to Health Canada, the Public Health Agency of Canada or their predecessor bodies concerning the oncogenic potential of Simian Virus 40 at the time; (h) what long-term epidemiologic or cohort studies, whether Canadian or international, have Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization reviewed or relied upon that specifically assessed cancer incidence or other chronic disease outcomes among individuals who received polio vaccines known or suspected to be contaminated with Simian Virus 40, including, for each study, the (i) title, (ii) authors, (iii) year, (iv) jurisdiction, (v) population size, (vi) duration of follow-up, (vii) main conclusions; (i) what is Health Canada’s current policy and regulatory guidance regarding the safe use, prohibition, or control of Simian Virus 40 or Simian Virus 40-derived materials in human vaccine manufacture, including (i) any applicable regulations, guidance documents or standards, (ii) requirements for testing of cell substrates and vaccine lots for Simian Virus 40 or other oncogenic viruses, (iii) how compliance is verified and enforced; (j) what post-market (Phase IV) safety surveillance systems and enhanced surveillance activities are in place for routine childhood vaccines in Canada, and, for each system, (i) what types of adverse events following immunization are monitored, (ii) how are signals related to multi-dose or multi-vaccine visits detected and evaluated, (iii) how do Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization use this data to update the childhood vaccine schedule or product monographs; (k) what guidance, if any, has the National Advisory Committee on Immunization issued regarding (i) the maximum number of vaccine injections recommended at a single visit for infants and children, (ii) the circumstances in which deferral, spacing or alternative scheduling is recommended for safety reasons, (iii) the evidence base cited in developing such guidance; (l) have Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization made any changes to Canada’s routine childhood vaccine schedule since January 1, 2020, in response to or alignment with modifications made in the United States; (m) has Health Canada, the Public Health Agency of Canada or the National Advisory Committee on Immunization conducted or commissioned formal comparisons of Canada’s schedule with those in other jurisdictions such as Japan, Germany, and Denmark, including any resulting recommendations or adjustments; and (n) if the answer to (m) is affirmative, what are the (i) dates, (ii) rationales, (iii) specific changes considered or implemented, (iv) references to relevant National Advisory Committee on Immunization statements, reports, or guidance documents?