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Seasonal influenza surveillance in France relies on several sources to detect the onset of the epidemic early, as well as to estimate the severity of epidemics and their impact on the health system. However, the data collected do not fully measure the impact of epidemics on the hospital system.
Increasing the investigator's knowledge of the impact of influenza on the hospital system, particularly on emergencies, which are the most affected service, is essential to better adapt the resources put in place to care for patients.
The study will allow a better understanding of the influenza burden, by systematically documenting the severe events (i.e. requiring consultations to the Emergency Rooms) that are triggered by influenza but not necessarily reported/recorded as influenza.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients admitted to emergency department with medical cause | Experimental | Patient included in emergency with a nasal swab |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Nasal swab | Other | Patient included in emergency with a nasal swab |
|
| Measure | Description | Time Frame |
|---|---|---|
| Proportion of laboratory confirmed influenza among patients admitted to Emergency Room during the influenza season | The proportion of laboratory confirmed influenza cases will be calculated by dividing the number of patients with laboratory confirmed influenza by the total number of patients included | 1 day (at admission) |
| Measure | Description | Time Frame |
|---|---|---|
| Proportion of patients with co-morbidities | to evaluate the proportion of patients consulting emergency department who have co-morbidities according to the result of the virological sampling | 1 day (at admission) |
| Proportion of patients with laboratory confirmed influenza and related outcomes |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Philppe VANHEMS, MD | Service Hygiène, Epidémiologie et Prévention | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Service Hygiène, Epidémiologie et Prévention | Lyon | 69003 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 39568106 | Result | Amour S, Rubio AP, Orsi A, Oppert M, Loebermann M, Del Pozo Vegas C, Tazarourte K, Douplat M, Jacquin L, Icardi G, Walker J, Glass A, Nealon J, Chaves SS; FERS Study Group; Bricout H, Vanhems P. Influenza in Adults Seeking Care at Seven European Emergency Departments: A Prospective Active Surveillance During the 2019-2020 Influenza Season. Influenza Other Respir Viruses. 2024 Nov;18(11):e70040. doi: 10.1111/irv.70040. |
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| ID | Term |
|---|---|
| D004630 | Emergencies |
| D007251 | Influenza, Human |
| ID | Term |
|---|---|
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012141 | Respiratory Tract Infections |
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to estimate the proportion of patients with a laboratory confirmed influenza stratified on the emergency department visit outcomes (hospitalization in medicine, hospitalization in intensive care unit or return home) and other covariates |
| 1 day (at admission) |
| Proportion of patients who consult for other causes than influenza | to estimate the proportion of patients with a laboratory confirmed influenza consulting for other causes than influenza | 1 day (at admission) |
| Proportion of asymptomatic influenza cases among patients with laboratory confirmed influenza | The proportion asymptomatic influenza cases will be calculated by dividing the number of patients with asymptomatic influenza by the total number of laboratory confirmed influenza | 1 day (at admission) |
| D007239 | Infections |
| D009976 | Orthomyxoviridae Infections |
| D012327 | RNA Virus Infections |
| D014777 | Virus Diseases |
| D012140 | Respiratory Tract Diseases |