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What do systematic reviews say?

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Evidence found and GRADE certainty

1 questions · 1 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 1 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Virus vaccines vs placebo

Incidence of the common cold Number of participants with common cold by group · young, healthy men in a military facility

It is very uncertain whether virus vaccines changes incidence of the common cold Number of participants with common cold… compared with placebo (very low certainty).

1 finding from 1 review