Contraindications for Influenza Vaccination

Influenza vaccination is an effective means of preventing seasonal flu, but not everyone is suitable for vaccination. The main contraindications for influenza vaccination include:

1. Severe allergy to vaccine components: Individuals who are allergic to any component of the vaccine, including excipients, formaldehyde, lysing agents, and antibiotics, should not receive the vaccine. In particular, those allergic to eggs or ovalbumin should take special care to avoid vaccination.

2. Febrile illness: Vaccination should be postponed when experiencing a fever or acute infection to avoid possible complications or confusion between vaccine side effects and disease symptoms.

3. Acute illness: Patients with acute illnesses or those experiencing acute exacerbations of chronic diseases, such as acute upper respiratory tract infection or acute gastroenteritis, should not be vaccinated.

4. Neurological disorders: Patients with epilepsy or other neurological diseases should not be vaccinated, as the vaccine may trigger neurological reactions.

5. Immune disorders: Individuals with severely compromised immune systems, such as cancer patients undergoing chemotherapy, should use live virus vaccines, such as nasal spray influenza vaccines, cautiously to avoid possible infections.

6. Others: Pregnant women, breastfeeding women, patients with advanced cancer, individuals with severe heart or lung failure, and others should consult their physicians based on individual circumstances before deciding to receive the vaccine.

Before vaccination, individuals should thoroughly inform their physician about their health status and allergy history.