GPs selected at random in the intervention arm "Recall" will recall their patients to be vaccinated via the recall module integrated into their Eo medical software

GPs in the ""usual care"" or ""control"" arm will not recall their patients to be vaccinated. GPs with their medical software.

They will worked as usual.

At mid-campaign, GPs in the interventional arm will recall their patients to be vaccinated via the reminder module Eo software

• This recall will be carried out as follows: patients whose medical records include a number likely to receive telephone text messages will be recalled by this means Two generic messages that doctors can choose will be proposed by the call-back module integrated into the Eo medical software
• In addition, the recall module will offer to send a postal letter with the same content as the text message to patients who do not have a mobile phone number in the business software but do have a postal address
• The recall module will also provide the doctor with a list of patients who have neither a mobile phone number or a postal address, so that he can recall them to be vaccinated orally by landline telephone or in consultation when they next visit.

The type of recall and the date of it will be notified in the medical file of each patient.

The influenza vaccination rate will be calculated as the ratio between the number of patients vaccinated (i.e., those who will report having been vaccinated during the vaccination campaign in the questionnaire send at the end of the campaign) and the number of patients aged 65 years and over.

At the end of the vaccination campaign, the GPs will send patients a postal mail containing: an accompanying explanatory letter, the patient questionnaire, and a pre-addressed and prepaid envelope for the return of the completed questionnaire to their attending physician.