After vaccination, why are you still infected with influenza?

After vaccination, why are you still infected with influenza?

      Many new parents often think that influenza will spread only during the rainy season. In fact, influenza is spread throughout the year, it can happen to all genders and ages, people who are healthy can be infected with the influenza virus and spread the infection.

What is the influenza virus

      The cause of influenza is A virus called Influenza virus that is in the snot, saliva or sputum of patients, it can be transmitted through coughing, sneezing, or breathing. When infected in the upper respiratory tract, it will cause high fever, cough, runny nose, nasal congestion, sneezing, body aches, and fatigue similar to the flu, but the symptoms are more common in younger children 2 years old, the elderly and people with chronic underlying diseases may experience severe symptoms and complications.

What are the 4 strains of influenza vaccine?

The influenza vaccine contains four strains of the influenza virus:

• Species A is subdivided into 2 subspecies: H1N1, H3N2
• Species B is subdivided into 2 subspecies: Yamagata, Victoria

How useful is the 4 strains of influenza vaccine?

• It can prevent infection with type B influenza virus, covering more strains.
• Reduce the rate of influenza outbreak.
• Reduce problems from complications caused by influenza infection, especially in young children and chronic patients.
• Reduce the use of antibiotics from complications in bacterial infections.
• Reduce the cost of treatment
• Reduce absence from work or school
• Reduce the rate of hospitalization
• Reduce the death rate from influenza.

      The influenza virus is continually changing strains, so each year vaccine production must change according to the strain of the virus. to cover the virus Therefore, it is necessary to receive an immunization influenza vaccine every year for continuous protection and the body builds immunity and adapts to the virus each year.

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