Vaccine

Severity-dependent test-seeking behaviors and test-negative designs: impact on estimated vaccine effectiveness and utility of analytic and design choices

Amin AB, Hitchings MDT, Ranzani OT, Andrews JR, Cummings DAT, Ko AI, Croda J, Dean NE

Aug 27, 2024

#VacinaMare campaign: addressing vaccine inequity in socially vulnerabilised communities

Batista-Da-Silva AA, Bastos LSL, Arouca LE, Gonzaga-Da-Silva TW, Hamacher S, Bozza FA, Ranzani OT

Aug 1, 2024

Impact of the first year of COVID-19 vaccination strategy in Brazil: an ecological study

Aguilar S, Bastos LSL, Maçaira P, Baião F, Simões P, Cerbino-Neto J, Ranzani OT, Hamacher S, Bozza FA

Jul 4, 2024

Effectiveness of COVID-19 vaccines against severe COVID-19 among patients with cancer in Catalonia, Spain

Lazar Neto F, Mercadé-Besora N, Raventós B, Pérez-Crespo L, Castro Junior G, Ranzani OT, Duarte-Salles T

Jun 19, 2024

Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort study

Lazar Neto F, Hitchings MDT, Amin AB, Croda J, Ranzani OT

Jun 1, 2024

Effectiveness of the BNT162b2 mRNA COVID-19 vaccine in children under 5 years

Strumann C, Ranzani OT, Moor J, Berner R, Töpfner N, Chao CM, Moor MB

Nov 1, 2023

Vaccine coverage and effectiveness against laboratory-confirmed symptomatic and severe Covid-19 in indigenous people in Brazil: a cohort study

Pescarini JM, Cardoso AM, Santos RV, .., Ranzani OT, ..., Barreto ML, Barral-Netto M

Jun 29, 2023

What we talk about when we talk about COVID-19 vaccination campaign impact: a narrative review

Hastenreiter Filho HN, Peres IT, Maddalena LG, Baião FA, Ranzani OT, Hamacher S, Maçaira PM, Bozza FA

Jan 1, 2023

Association between primary or booster COVID-19 mRNA vaccination and Omicron lineage BA.1 SARS-CoV-2 infection in people with a prior SARS-CoV-2 infection: A test-negative case-control analysis

Lind ML, Robertson AJ, Silva J, .., Ranzani OT, ..., Hitchings MDT, Schulz WL

Dec 1, 2022

Effectiveness of an inactivated Covid-19 vaccine with homologous and heterologous boosters against Omicron in Brazil

Ranzani OT, Hitchings MDT, De Melo RL, Ko AI, Croda J

Oct 6, 2022