Know What is the Influenza Vaccine and its Side Effects

Know What is the Influenza Vaccine and its Side Effects. 

Know What is the Influenza Vaccine and its Side Effects

Did you know that Influenza can be a deadly disease, especially for children, adults aged 65 and older, those with certain health conditions, and pregnant women?

The influenza vaccine is not recommended for those allergic to chicken eggs and those who have an allergic reaction to the injections. Each year, the flu infects humans in different ways. Even a very healthy person can be attacked and eventually spread the flu to others.

Based on the Centers for Disease Control and Prevention in the United States, influenza vaccine is the best way to protect you and your family. This vaccination is also recommended for everyone from the age of 6 months.

The latest flu vaccine is made every year because of the flu that keeps changing. Scientists make this vaccine before the flu season begins by predicting the causes of the flu.

Currently, the flu virus that attacks humans are at a higher level. The annual flu vaccine (either flu shot or nasal spray) is the best way to prevent someone from contracting the seasonal flu and pass it on to others. The more people who make the flu vaccine, the fewer flu viruses that spread.

How does influenza vaccine work?

The flu vaccine causes an increase in antibodies in the body about two weeks after the vaccine is done. These antibodies protect the body from viral infections present in the vaccine. Traditional flu vaccines called 'trivalent' vaccines are made to protect the body from three flu viruses, influenza A (H1N1), influenza A (H3N2), and influenza B.

The following types of trivalent flu vaccines are available:

Standard trivalent dose injection, which is produced using the growth of virus in the egg. This type of vaccine can be used for people aged 6 months. Most flu shots are given with a needle, but others use jet injectors for those ages 18 to 64.
High-dose trivalent injections, used for those over 65 years of age.
Trivalent injections with viral growth in tissue culture, used for those over 18 years of age.

In addition to the type of trivalent vaccine, there is also a quadrivalent vaccine that protects against two influenza A viruses and two B influenza viruses.

What are the Side Effects of a Flu Vaccine?

Although side effects are not always the case for everyone, these side effects can occur from mild to severe and often occur depending on the type of vaccine received.

Here are the side effects after receiving the flu vaccine:

Pain on the injected part.
A common side effect is pain in the injected part. After injection, pain, redness, warmth, and in some cases, slight swelling may occur. Pain in the injected part is the most common side effect, and the pain usually lasts for two days.

Pain.
Often, you feel pain and pain after being vaccinated on the muscles throughout the body. As well as pain in the injected part, this usually occurs on the first day and will disappear after two days. Using anti-pain medication can help relieve pain and pain that is felt.

Headache.
Headache, and more severe, fainting, can be a side effect of both flu vaccines, ie flu shot and nasal spray. Headache is a mild side effect and will not last longer than two days. If you are prone to headaches and fainting, you should let your doctor know first.

Fever.
Fever at a temperature of less than 38 degrees Celsius is a common side effect after getting a flu shot or nasal spray vaccine. Fever can be considered as a mild side effect and will subside for 2 days.

High fever (above 38 degrees Celsius) is a very unusual side effect, if you experience it should contact your doctor immediately.

Nose runny and sore throat.
The nasal spray flu vaccine can cause other side effects of the flu shot. Some people who received the nasal spray flu vaccine experienced runny nose and sore throat afterwards.

Some allergic reactions.
A very rare flu vaccine can cause some allergic reactions. Signs of severe allergic reactions include itching, swelling, difficulty breathing, dizziness, and weakness. This allergic reaction usually occurs several hours after receiving the vaccine.

Guillain-Barre Syndrome.
In extreme cases, flu vaccine can cause side effects such as Guillain-Barré Syndrome (GBS) which is a neurological condition that causes weakness and paralysis of the whole body. This condition requires immediate treatment.