As the autumn season gets underway in Flanders, regional health authorities are urging residents to prepare for the return of circulating influenza and COVID-19 viruses. While infections typically cause mild illness for many, they pose severe health risks—including hospitalization and long-term complications—for older adults and individuals with underlying medical conditions, according to the Belgian health agency Departement Zorg.
Vaccination Target Groups and Clinical Recommendations
Health officials strongly recommend autumn vaccinations for specific vulnerable populations to mitigate the risk of severe disease. The primary target groups include adults aged 65 and older, individuals residing in long-term care facilities, adults and adolescents with chronic medical conditions, immunocompromised patients, and people suffering from severe obesity. Healthcare workers are also prioritized for immunization to protect vulnerable patients.
According to clinical guidance from health authorities, individuals who live with severely immunocompromised household contacts should discuss vaccination options with a physician or pharmacist. Recommendations for pregnant women vary by pathogen: influenza vaccination is advised during pregnancy, whereas COVID-19 vaccination decisions depend on individual health status and gestational risk factors, requiring consultation with a primary care doctor or gynecologist.
Immunization Schedules and Simultaneous Administration
The 2026 COVID-19 vaccination campaign in Flanders runs from September 29 through mid-December. The optimal window for the seasonal influenza shot is scheduled slightly later, spanning from mid-October through the end of November.
Patients seeking protection against both viruses can receive the COVID-19 and influenza vaccines during a single medical visit between mid-October and late November. Departement Zorg confirms that simultaneous administration of both vaccines is both effective and safe, allowing patients to complete their winter immunization during one appointment with a general practitioner or pharmacist.
Cost, Accessibility, and Financial Coverage
Financial coverage for the two vaccines differs across health insurance frameworks in the region. The COVID-19 vaccine is provided free of charge throughout Flanders. Conversely, financial reimbursement for the influenza vaccine depends on specific eligibility criteria managed via health insurance funds (ziekenfonds). Adults aged 65 and older and other designated risk groups qualify for partial or full reimbursement. In addition, the influenza vaccine is free for residents in officially recognized Flemish nursing homes and care facilities.
Medical professionals advise that vaccine selection depends on individual age, health status, and personal risk profile. Patients experiencing acute illness with a fever exceeding 38 degrees Celsius on the scheduled vaccination day should postpone their appointment and consult a healthcare provider.
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