Overview and evaluation of a nationwide hospital-based surveillance system for influenza and COVID-19 in Switzerland (CH-SUR): 2018-2023
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View abstract on PubMed
Summary
This summary is machine-generated.The Swiss Communicable Disease Surveillance Network (CH-SUR) effectively tracked hospitalised influenza and COVID-19 cases. Stakeholder feedback confirmed its importance for public health preparedness and response.
Area Of Science
- Epidemiology
- Public Health Surveillance
- Infectious Disease Dynamics
Background
- Established in 2018, the Swiss Communicable Disease Surveillance Network (CH-SUR) initially focused on influenza in tertiary care hospitals.
- Expanded in March 2020, CH-SUR incorporated COVID-19 surveillance, increasing its scope and participating institutions.
Purpose Of The Study
- To quantitatively assess the timeliness and completeness of data within the CH-SUR system.
- To qualitatively evaluate stakeholder perceptions regarding the surveillance system's importance, reliability, and adaptability.
Main Methods
- Inclusion criteria for CH-SUR: patients with laboratory-confirmed influenza or SARS-CoV-2 admitted for over 24 hours.
- Quantitative analysis of data reporting timeliness and completeness.
- Qualitative survey administered to CH-SUR stakeholders to gauge perceptions of the system's utility and performance.
Main Results
- CH-SUR involved up to 20 centers, reporting 7,375 influenza cases (2018-2023) and 49,235 COVID-19 cases (2020-2023).
- Data entry timeliness and completeness improved during the pandemic; median delays were 5 days for COVID-19 and 4 days for influenza.
- High overall data completeness (99.4%), with noted exceptions for COVID-19 and influenza vaccination status.
Conclusions
- CH-SUR provided essential epidemiological and clinical data on hospitalized influenza and COVID-19 patients throughout the pandemic in Switzerland.
- Stakeholder evaluations underscored the system's perceived importance, relevance, and adaptability for infectious disease surveillance.
- The study highlights CH-SUR's crucial role in preparedness and response strategies for future infectious disease outbreaks.
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