Sara Carazo

Quebec, QC, Canada

Last Updated: 09/26/2026

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Found 34 publications

Interim 2025/26 LP.8.1 vaccine effectiveness estimates against COVID-19 from the Canadian Sentinel Practitioner Surveillance Network (SPSN): insights into possible impact of influenza and other respiratory virus co-circulation.

Interim 2025/26 LP.8.1 vaccine effectiveness estimates against COVID-19 from the Canadian Sentinel Practitioner Surveillance Network (SPSN): insights into possible impact of influenza and other respiratory virus co-circulation.

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

Published: May 16, 2026

2024/25 end-of-season KP.2 vaccine effectiveness against COVID-19 hospitalization in older adults: a test-negative study in Quebec, Canada.

2024/25 end-of-season KP.2 vaccine effectiveness against COVID-19 hospitalization in older adults: a test-negative study in Quebec, Canada.

Journal: Vaccine

Published: March 19, 2026

Interim 2025/26 influenza vaccine effectiveness estimates with immuno-epidemiological considerations for A(H3N2) subclade K protection, Canada, January 2026.

Interim 2025/26 influenza vaccine effectiveness estimates with immuno-epidemiological considerations for A(H3N2) subclade K protection, Canada, January 2026.

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

Published: February 06, 2026

Nirsevimab effectiveness, number needed to immunize and impact on severe RSV outcomes, a test-negative study in Quebec, Canada.

Nirsevimab effectiveness, number needed to immunize and impact on severe RSV outcomes, a test-negative study in Quebec, Canada.

Journal: Lancet regional health. Americas

Published: November 28, 2025

Methodological considerations in the attribution of long COVID to first or second infection.

Methodological considerations in the attribution of long COVID to first or second infection.

Journal: The Lancet. Infectious diseases

Published: November 17, 2025

Influenza vaccination status ascertainment and vaccine effectiveness estimation: Validity of self-report for current and prior season.

Influenza vaccination status ascertainment and vaccine effectiveness estimation: Validity of self-report for current and prior season.

Journal: Vaccine

Published: October 24, 2025

Effectiveness of 2024/25 KP.2 Vaccine Against Outpatient COVID-19 in Canada.

Effectiveness of 2024/25 KP.2 Vaccine Against Outpatient COVID-19 in Canada.

Journal: Influenza and other respiratory viruses

Published: October 09, 2025

Functional impact of long COVID among healthcare workers with comorbidities in Quebec, Canada: a cross-sectional study.

Functional impact of long COVID among healthcare workers with comorbidities in Quebec, Canada: a cross-sectional study.

Journal: BMJ public health

Published: September 30, 2025

Effectiveness of COVID-19 Vaccination and Prior Infections to Reduce Long COVID Risk During the Pre-Omicron and Omicron Periods.

Effectiveness of COVID-19 Vaccination and Prior Infections to Reduce Long COVID Risk During the Pre-Omicron and Omicron Periods.

Journal: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America

Published: June 30, 2025

Long COVID risk and severity after COVID-19 infections and reinfections: A retrospective cohort study among healthcare workers.

Long COVID risk and severity after COVID-19 infections and reinfections: A retrospective cohort study among healthcare workers.

Journal: International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Published: May 28, 2025

Analytical approaches and examples of addressing time-varying factors in COVID-19 vaccine effectiveness studies: Report from a meeting of the World Health Organization.

Analytical approaches and examples of addressing time-varying factors in COVID-19 vaccine effectiveness studies: Report from a meeting of the World Health Organization.

Journal: Vaccine

Published: May 22, 2025

Interim estimates of vaccine effectiveness against influenza A(H1N1)pdm09 and A(H3N2) during a delayed influenza season, Canada, 2024/25.

Interim estimates of vaccine effectiveness against influenza A(H1N1)pdm09 and A(H3N2) during a delayed influenza season, Canada, 2024/25.

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

Published: January 31, 2025

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Last Updated: 09/26/2026