Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews · Acute Respiratory Infections

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

Incidence of acute URTIs during the study period (the number of acute URTIs over a period of time) · children, adults, and the elderly

Intention‐to‐treat analysis: probiotics may leads to lower incidence rate of acute URTIs compared with placebo or no treatment (low certainty).

1 finding from 1 review

Probiotics for preventing acute upper respiratory tract infections 2022 · Cochrane Headline outcomes only
Rate ratio 0.82 [0.73, 0.92]
12 studies · 4364 participants
Low