Peer-reviewedCC BY 4.0Research Connections
Viral circulation patterns and hospitalisation burden of SARS-CoV-2 and influenza in the post-pandemic period: an analysis of surveillance data from the United States, England and Europe, 2022-2025
Abstract
Influenza exhibits predictable winter seasonality, while SARS-CoV-2 seasonal patterns remain uncertain. Using a retrospective ecological design, we analysed surveillance data from the US, England, and Europe during the post-pandemic period. Influenza maintained consistent late-autumn to winter peaks, while SARS-CoV-2 showed dispersed peaks shifting from summer-autumn in 2022 to summer-dominant in 2024. From 2022 to 2025, SARS-CoV-2 continued to circulate with declining but unpredictable COVID-19 hospitalisation. These findings support continued surveillance and evidence-based immunisation strategies for vulnerable populations.
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BibTeX
@article{guercheseblain2026viral,
title = {{Viral circulation patterns and hospitalisation burden of SARS-CoV-2 and influenza in the post-pandemic period: an analysis of surveillance data from the United States, England and Europe, 2022-2025}},
author = {Clotilde El Guerche-Séblain and Karla Therese Lo Sy and Saverio Caini and Pascal Crepey and Joshua Nealon},
journal = {Research Connections},
year = {2026},
month = aug,
doi = {10.1093/rescon/vmag147},
url = {https://hal.science/hal-05764179v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Viral circulation patterns and hospitalisation burden of SARS-CoV-2 and influenza in the post-pandemic period: an analysis of surveillance data from the United States, England and Europe, 2022-2025
AU - Clotilde El Guerche-Séblain
AU - Karla Therese Lo Sy
AU - Saverio Caini
AU - Pascal Crepey
AU - Joshua Nealon
PY - 2026
DA - 2026/08/28
JO - Research Connections
DO - 10.1093/rescon/vmag147
UR - https://hal.science/hal-05764179v1
AB - Influenza exhibits predictable winter seasonality, while SARS-CoV-2 seasonal patterns remain uncertain. Using a retrospective ecological design, we analysed surveillance data from the US, England, and Europe during the post-pandemic period. Influenza maintained consistent late-autumn to winter peaks, while SARS-CoV-2 showed dispersed peaks shifting from summer-autumn in 2022 to summer-dominant in 2024. From 2022 to 2025, SARS-CoV-2 continued to circulate with declining but unpredictable COVID-19 hospitalisation. These findings support continued surveillance and evidence-based immunisation strategies for vulnerable populations.
SN - 3049-5245
ER -