V200406

The Global Influenza Hospital Surveillance Network (GIHSN) is a platform able to generate strong epidemiological and medical evidence on influenza severity and to support vaccine strain selection through timely sharing of clinical and laboratory data. GIHSN can inform policy decisions and national health authorities and serve as a network for improved influenza related capacity building and response.

Data is collected during each flu season with on-line questionnaire on the GIHSN platform and can be visualized in the analysis modules.

The GIHSN network includes currently 23 sites worldwide:

The sites are not-for-profit institutions coordinating local hospitals networks. In May each year there is a call for proposal for the upcoming flu season. A selection of sites is done by the Executive Committee of the Foundation for Influenza Epidemiology based on the quality of the proposal and the capacities of the site.
​

The data visualized on the platform is collected by the sites (see list here above) through on-line questionnaires that are established by the Scientific Committee of the network. The variables collected might differ slightly between seasons.
​

Variables currently collected by the GIHSN sites:

Patients 5 years of age and more:

Description:

Have you had one of these symptoms in the last 7days prior to admission? Fever

Have you had one of these symptoms in the last 7days prior to admission? Malaise

Have you had one of these symptoms in the last 7days prior to admission? Headache

Have you had one of these symptoms in the last 7days prior to admission? Myalgia

Have you had one of these symptoms in the last 7days prior to admission? Cough

Have you had one of these symptoms in the last 7days prior to admission? Sore throat

Have you had one of these symptoms in the last 7days prior to admission? Shortness of breath

Have you had one of these symptoms in the last 7days prior to admission? Nasal congestion

Does the patient comply with the GIHSN ILI casedefinition and the 7 days criteria?

Date of swabbing

Does the patient have a positive result? If yes, which ones corresponding to the positive virus (es)

H1N1pdm09

H3N2

B / Yamagata

B / Victoria

Influenza A no lineage

Influenza B no lineage

Did you test for other respiratory viruses?

Have you detected a co-infection?

Does the patient have any chronic conditions?

Prescriptions of antiviral for the current episode?

Starting Date

Prescription of antibiotics preceding this admission?

Starting Date

What is the baseline frailty score of the patient?

Influenza vaccination for the current season

Vaccinated more than 14 days before onset of the ILI symptoms

Influenza vaccination in the preceding season?

Confusion / lethargy at admission

Blood pressure (systolic / diastolic)

Respiratory rate at admission (breaths per minute)

Supplemental oxygen without mechanical ventilation

Vasopressor support

Mechanical ventilation

Apnea

ICU admission

Death while hospitalized

Discharge / death date

Discharge to another hospital

Main diagnose at discharge / death (letter / code.subcode)

Secondary 1 diagnose at discharge / death (letter / code.subcode)

Secondary 2 diagnose at discharge / death (letter / code.subcode)

ICD used

What is the frailty score of the patient at discharge?

Did you submit the sample to GISAID EpiFlu ™ database?

GISAID Accession Number