Author

Baltazar Nunes

3 papers indexed here

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Open access Oct 2026

Comparing two case definitions for including severe acute respiratory infection patients in influenza and COVID-19 vaccine effectiveness studies among older adults using the test-negative design: VEBIS hospital network, seven European countries, 2023/24.

INTRODUCTION Two severe acute respiratory infection (SARI) case definitions (CDs) are often used in test-negative design (TND) hospital-based vaccine effectiveness (VE) studies. SARI-CD1 requires ≥1 symptom (cough, fever, shortness of breath, anosmia, ageusia, or dysgeusia); SARI-CD2 requires both fever and cough. Usin...

Diogo F. P. Marques, Jennifer Howard, Marcos Lozano Álvarez et al. · Vaccine · 0 citations

Open access Aug 2026

Association between influenza vaccination and severe outcomes in adults aged ≥ 65 years hospitalized with laboratory-confirmed influenza: a retrospective cohort study, I-MOVE hospital network, Europe, 2015/16-2024/25.

Vaccination showed little or no association with ICU admission, but was associated with a one-quarter reduction in IHD among hospitalized older adults, reinforcing its benefits against fatal in-hospital outcomes.

Diogo F. P. Marques, Angela M. C. Rose, S. Monge et al. · Expert Review of Vaccines · 0 citations

Open access Jul 2026

Adapted XBB.1.5 vaccine effectiveness against severe COVID-19 outcomes among immunocompromised persons in 2023-24 in six European countries: a VEBIS-EHR network study.

Adapted XBB.1.1.5 vaccine provided moderate protection within 120 days after vaccination against severe COVID-19 outcomes among ICPs aged ≥18 years during a period with BA.2.1 replacing the XBB.1.5 variant.

A. Blake, J. Humphreys, K. Olson et al. · Expert Review of Vaccines · 0 citations