Marlena C. Kaczmarek

Stockholm, AB, Sweden

Last Updated: 09/26/2026

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Found 25 publications

COVID-19 Vaccine Effectiveness Among Older Adults.

COVID-19 Vaccine Effectiveness Among Older Adults.

Journal: JAMA network open

Published: June 15, 2026

Vaccine effectiveness against medically attended, laboratory-confirmed influenza in the I-MOVE primary care network in Europe, VEBIS project, 2024/25.

Vaccine effectiveness against medically attended, laboratory-confirmed influenza in the I-MOVE primary care network in Europe, VEBIS project, 2024/25.

Journal: Expert review of vaccines

Published: March 12, 2026

Identification of the causal odds ratio in test-negative-design studies of COVID-19 vaccine effectiveness.

Identification of the causal odds ratio in test-negative-design studies of COVID-19 vaccine effectiveness.

Journal: International journal of epidemiology

Published: January 12, 2026

Influenza vaccine effectiveness in Europe and the birth cohort effect against influenza A(H1N1)pdm09: VEBIS primary care multicentre study, 2023/24.

Influenza vaccine effectiveness in Europe and the birth cohort effect against influenza A(H1N1)pdm09: VEBIS primary care multicentre study, 2023/24.

Journal: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

Published: June 13, 2025

Influenza Vaccine Effectiveness in European Primary Care Pediatric Practices: 2022-2024.

Influenza Vaccine Effectiveness in European Primary Care Pediatric Practices: 2022-2024.

Journal: Pediatrics

Published: June 10, 2025

COVID-19 Vaccine Effectiveness Against Medically Attended Symptomatic SARS-CoV-2 Infection Among Target Groups in Europe, October 2024-January 2025, VEBIS Primary Care Network.

COVID-19 Vaccine Effectiveness Against Medically Attended Symptomatic SARS-CoV-2 Infection Among Target Groups in Europe, October 2024-January 2025, VEBIS Primary Care Network.

Journal: Influenza and other respiratory viruses

Published: March 10, 2025

The potential bias introduced into COVID-19 vaccine effectiveness studies at primary care level due to the availability of SARS-CoV-2 tests in the general population.

The potential bias introduced into COVID-19 vaccine effectiveness studies at primary care level due to the availability of SARS-CoV-2 tests in the general population.

Journal: International journal of epidemiology

Published: November 25, 2024

Corrigendum to "Effectiveness of COVID-19 vaccines administered in the 2023 autumnal campaigns in Europe: results from the VEBIS primary care test-negative design study, September 2023-January 2024" [Vaccine 42(19) (2024)].

Corrigendum to "Effectiveness of COVID-19 vaccines administered in the 2023 autumnal campaigns in Europe: results from the VEBIS primary care test-negative design study, September 2023-January 2024" [Vaccine 42(19) (2024)].

Journal: Vaccine

Published: July 06, 2024

COVID-19 Vaccine Effectiveness in Autumn and Winter 2022 to 2023 Among Older Europeans.

COVID-19 Vaccine Effectiveness in Autumn and Winter 2022 to 2023 Among Older Europeans.

Journal: JAMA network open

Published: July 01, 2024

Effectiveness of XBB.1.5 Vaccines Against Symptomatic SARS-CoV-2 Infection in Older Adults During the JN.1 Lineage-Predominant Period, European VEBIS Primary Care Multicentre Study, 20 November 2023-1 March 2024.

Effectiveness of XBB.1.5 Vaccines Against Symptomatic SARS-CoV-2 Infection in Older Adults During the JN.1 Lineage-Predominant Period, European VEBIS Primary Care Multicentre Study, 20 November 2023-1 March 2024.

Journal: Influenza and other respiratory viruses

Published: June 21, 2024

COVID-19 vaccine effectiveness against symptomatic infection with SARS-CoV-2 BA.1/BA.2 lineages among adults and adolescents in a multicentre primary care study, Europe, December 2021 to June 2022.

COVID-19 vaccine effectiveness against symptomatic infection with SARS-CoV-2 BA.1/BA.2 lineages among adults and adolescents in a multicentre primary care study, Europe, December 2021 to June 2022.

Journal: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

Published: March 29, 2024

Effectiveness of COVID-19 vaccines administered in the 2023 autumnal campaigns in Europe: Results from the VEBIS primary care test-negative design study, September 2023-January 2024.

Effectiveness of COVID-19 vaccines administered in the 2023 autumnal campaigns in Europe: Results from the VEBIS primary care test-negative design study, September 2023-January 2024.

Journal: Vaccine

Published: March 22, 2024

Showing 1-12 of 25

Last Updated: 09/26/2026