Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews

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

Cumulative cases of typhoid fever at 2.5 to 3 years · adults and children of 2 years of age and older

Vi polysaccharide vaccine (1 dose) may leads to lower cumulative cases of typhoid fever at 2.5 to 3 years compared with control (low certainty).

1 finding from 1 review

Vaccines for preventing typhoid fever 2018 · Cochrane Headline outcomes only
RR 0.45 [0.3, 0.7]
1 study · 11384 participants
Low