Author

Alena Chalupka

Observed name: Chalupka, Alena

Institutions: Gesundheit Österreich, Austrian Agency for Health and Food Safety

Observed institutions: Medical University of Graz, Gesundheit Österreich, Austrian Agency for Health and Food Safety

ORCID: 0009-0000-3291-1456

Observed ORCID: 0009-0000-3291-1456

OpenAlex ID: A5093384636

Effectiveness of a fourth SARS‐CoV ‐2 vaccine dose in previously infected individuals from Austria

2023 · Alena Chalupka, Lukas Richter, et al. · European Journal of Clinical Investigation · 22

Excess mortality in Europe coincides with peaks of COVID-19, influenza and respiratory syncytial virus (RSV), November 2023 to February 2024

2024 · Sarah K Nørgaard, Jens Nielsen, et al. · Eurosurveillance · 20

Estimates of SARS-CoV-2 Infections and Population Immunity After the COVID-19 Pandemic in Austria: Analysis of National Wastewater Data

2025 · Uwe Riedmann, Alena Chalupka, et al. · The Journal of Infectious Diseases · 11

COVID-19 case fatality rate and infection fatality rate from 2020 to 2023: Nationwide analysis in Austria

2025 · Uwe Riedmann, Alena Chalupka, et al. · Journal of Infection and Public Health · 10

Effectiveness of the First and Second Severe Acute Respiratory Syndrome Coronavirus 2 Vaccine Dose: A Nationwide Cohort Study From Austria on Hybrid Versus Natural Immunity

2024 · Alena Chalupka, Uwe Riedmann, et al. · Open Forum Infectious Diseases · 8

Underlying health biases in previously-infected SARS-CoV-2 vaccination recipients: A cohort study

2025 · Uwe Riedmann, Alena Chalupka, et al. · Journal of Infection · 7

Excess mortality in Europe estimated by EuroMOMO during the COVID-19 pandemic and previous influenza seasons

2026 · Sarah K. Nørgaard, Jens Nielsen, et al. · Nature Communications · 5

Cross-border investigation of a tuberculosis outbreak in Vienna linked to a multi-country cluster among foreign-born individuals, Europe, 2021 to 2025

2025 · Fiona Költringer, Maria Koreny, et al. · Eurosurveillance · 5

Factors associated with barriers in talking about sexual health – Findings from an online survey in Austria -2024

2026 · Vivien Brait, Alina Novacek, et al. · Journal of Public Health

Models and input parameters for the estimation of heat-related excess mortality: a scoping review

2026 · Barbara Kovács, Elisabeth Dottolo, et al. · JBI Evidence Synthesis

Corrigendum to “Underlying health biases in previously-infected SARS-CoV-2 vaccination recipients: A cohort study” [J Infect 90 (2025) 106497]

2025 · Uwe Riedmann, Alena Chalupka, et al. · Journal of Infection

Works count: 12

Citation count: 88

H-index: 6

I10-index: 4