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Nosocomial Influenza Surveillance of 2022 - 2027 Seasonal Period

Surveillance of Nosocomial Influenza at Edouard Herriot University Hospital, Lyon, France

Status
Withdrawn
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05712759
Acronym
NOSOGRIPPE
Enrollment
0
Registered
2023-02-03
Start date
2025-03-09
Completion date
2025-03-09
Last updated
2025-03-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infection Viral

Keywords

influenza, hospital, nosocomial

Brief summary

Hospital-Acquired Influenza (HAI) is closely linked to the intensity of influenza in the community. HAI is associated with significant morbidity, mortality and extra costs due to prolonged hospital stay. The incidence of laboratory confirmed HAI has been reported rarely. The proportion of HAI among influenza cases was 11.38% (95% Confidence Interval: 5.19%-19.55%) in a meta-analysis of 14 studies. In France, a prospective surveillance study of adults with Influenza-Like Illness (ILI) over 11 years, reported that 35.6% of the influenza cases diagnosed at hospital were hospital-acquired. HAI is transmitted via respiratory droplets and by hand contacts. The spread is facilitated by Health Care Professionals (HCPs), patients and visitors. Prevention and control of HAI is of upmost importance to preserve patient safety and limit the related economic costs. While vaccination of HCPs has been shown to contribute to the reduction of HAI, less is known on the impact of patient vaccination on the risk of HAI during hospitalization. The aim of this study is to describe the hospital-acquired influenza in a french university hospital.

Interventions

OTHERInfluenza-like illness group

Each patient who present ILI (influenza-like illness) at admission or during hospitalization and who have had a nasopharyngeal swab taken as part of their care for the purpose of diagnosing influenza by Polymerase Chain reaction (PCR) testing. ILI is defined by fever \> 37,8°C or/and cough or sore throat.

Sponsors

Hospices Civils de Lyon
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Any volunteer adult patient (≥ 18 years of age) hospitalized for at least 24 hours on a study unit, who had a nasopharyngeal swab taken as part of care for the purpose of diagnosing influenza by PCR testing and who had an influenza-like illness meeting the following definition: * Fever greater than 37.8°C in the absence of antipyretics; And/or * Cough or pharyngeal pain.

Exclusion criteria

* Any person who does not meet the above definition or who has expressed opposition.

Design outcomes

Primary

MeasureTime frameDescription
To describe and document cases of nosocomial influenza occurring at Edouard Herriot Hospital.At inclusionThe primary endpoint will be assessed by the proportion of patients with nosocomial influenza among all patients with influenza-like illness during an influenza season.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026