1998
Effectiveness of pneumococcal vaccine
Butler J, Spika J, Nichol K, Shapiro E, Breinan R. Effectiveness of pneumococcal vaccine. The Lancet 1998, 351: 1961. PMID: 9654289, DOI: 10.1016/s0140-6736(05)78647-5.Peer-Reviewed Original Research
1984
A controlled evaluation of the protective efficacy of pneumococcal vaccine for patients at high risk of serious pneumococcal infections.
Shapiro E, Clemens J. A controlled evaluation of the protective efficacy of pneumococcal vaccine for patients at high risk of serious pneumococcal infections. Annals Of Internal Medicine 1984, 101: 325-30. PMID: 6380367, DOI: 10.7326/0003-4819-101-3-325.Peer-Reviewed Original ResearchConceptsIncreased risk of pneumococcal infectionRisk of pneumococcal infectionEfficacy of pneumococcal vaccineSystemic pneumococcal infectionPneumococcal infectionPneumococcal vaccineVaccine protective efficacyIncreased riskProtective efficacyCase-control studyOdds ratioVaccine efficacyHigh riskMatched controlsPatientsInfectionConfounding variablesEfficacyVaccine