Could you explain in more detail how a proposed Cluster RCT for childhood vaccines should be organized? Would there be placebo control arms that would exclude some/all of the usual state required (e.g., mmr, dtap, etc) for the duration of the trial? Ethical issues?
Or are you just suggesting varying the schedules (comparisons to European countries)?
Could you explain in more detail how a proposed Cluster RCT for childhood vaccines should be organized? Would there be placebo control arms that would exclude some/all of the usual state required (e.g., mmr, dtap, etc) for the duration of the trial? Ethical issues?
Or are you just suggesting varying the schedules (comparisons to European countries)?
Could you explain in more detail how a proposed Cluster RCT for childhood vaccines should be organized? Would there be placebo control arms that would exclude some/all of the usual state required (e.g., mmr, dtap, etc) for the duration of the trial? Ethical issues?
Or are you just suggesting varying the schedules (comparisons to European countries)?