This rainy season, don't forget to build a protective shield with 4 strains of influenza vaccine because the strains of influenza change every year. Vaccination is therefore necessary and a big issue that should not be overlooked.

What are the 4 strains of influenza?

Influenza is caused by the influenza virus. which is a virus called “Influenza virus” (Influenza virus) is divided into 2 types: Influenza A and B, each type is divided into 4 subspecies as follows: influenza virus A/ H1N1, influenza virus A/ H3N2, influenza B virus, Victoria family, and influenza B virus, Yamagata family.

Symptoms like this Risk of influenza

Most people will start to feel sick 1-2 days after being infected, then symptoms of both the upper and lower respiratory tract will occur. There are often obvious symptoms such as high fever, chills, headache, muscle aches, eye pain, red eyes, nasal congestion, runny nose, fatigue, cough, sore throat. There may also be loss of appetite, nausea, vomiting or diarrhea.

Risk groups that should be protected with vaccines

• Children under 3 years old
• Elderly people over 65 years of age
• Pregnant women
• Patients with chronic diseases that require continuous care, such as diabetes, heart, lung, liver and kidney disorders, autoimmune diseases. Immune deficiency, immune-suppressing drugs such as rheumatoid arthritis and organ transplants, etc.

Why do I need to get the flu vaccine every year?

Because the influenza virus changes the strain that spreads each year. Periodically causing new infections. Including the body's immunity to influenza virus lasts about 1 year and usually decreases in a few months or years. Therefore, vaccination is recommended to stimulate influenza immunity. Before the rainy and cold season, which is the flu season. Receiving the 4 strains of influenza vaccine reduces the risk of getting influenza and reduces the severity of the disease as well. Therefore it should be injected every year.