What should you know about influenza trivalente?

The word trivalente describes the vaccine formulation, not a type of influenza illness. Vaccine composition is selected to match viruses expected to circulate, and protection can vary as viruses change. Vaccination cannot cause influenza infection, but mild soreness or short-lived tiredness can occur after an injection. It also does not protect against every respiratory virus.

A vaccinated person may still develop influenza, yet vaccination can support protection against serious illness. A clinician will consider your age, pregnancy, allergies, immune system, previous reactions, and current health before recommending a product. Ask which formulation is available locally and whether it is suitable for you.

Bring a list of allergies, medicines, and prior vaccine reactions to your appointment. Tell the vaccinator if you are currently unwell or have a weakened immune system. After vaccination, follow the observation advice provided and seek guidance if a reaction concerns you. Continue hand hygiene, ventilation, cough etiquette, and staying home when ill, because these measures address infections vaccination does not cover.

Seek urgent help after vaccination for trouble breathing, swelling of the face or throat, widespread hives, fainting, or rapidly worsening illness. If you develop fever, cough, chills, headache, fatigue, or feeling generally unwell, a clinician can help distinguish influenza from a vaccine reaction or another infection. Breathing problems or chest pain need urgent assessment because pneumonia and other complications can be serious.

Ask whether a trivalent vaccine is recommended for you, when to receive it, which side effects are expected, what to do after a previous reaction, and whether another vaccine formulation is more suitable.