Pneumococcal polysaccharide vaccine

Intervention1 paper3 findings

C · W · M · H: cells, worms or flies, mice, humans. Dark: independent labs found the same change there. Light: one lab or one study. Outline: nothing yet.

Labs are independent when their papers share no last author and no institution.

Against: findings that point the other way from most findings on the same outcome.

No results posted: trials that ended more than a year ago with no results on ClinicalTrials.gov and no paper in ARN’s record.

Company ties: findings with an author at a company, or from a paper that declares the maker’s interest.

1 lab in 1 country

Outcomes

3

Mortality

no changein humans1HR 1.02

1 study
  1. Pneumococcal polysaccharide vaccine has no effect on mortality in humans (HR 1.02, 95% CrI 0.83-1.29).

    Humans

    PPV23 Vaccination and Risk of Cardiovascular Events: A Meta-Analysis · JACC. Advances · 17 Aug 2026

Stroke

no changein humans1HR 1.1

1 study
  1. Pneumococcal polysaccharide vaccine has no effect on stroke in humans (HR 1.10, 95% CrI 0.83-1.48).

    Humans

    PPV23 Vaccination and Risk of Cardiovascular Events: A Meta-Analysis · JACC. Advances · 17 Aug 2026

Stroke →

Acute coronary syndrome

no changein humans1HR 0.87

1 study
  1. Pneumococcal polysaccharide vaccine has no effect on acute coronary syndrome in humans (HR 0.87, 95% CrI 0.64-1.14).

    Humans

    PPV23 Vaccination and Risk of Cardiovascular Events: A Meta-Analysis · JACC. Advances · 17 Aug 2026

Acute coronary syndrome →

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