Vaccine Side Effects
Vaccine Side Effects

8 Mild and Serious Vaccine Side Effects

Vaccine Side EffectsVaccines help the immune system (immune) in recognizing and fighting pathogens such as viruses or bacteria.

With the virus, the immune system will directly recognize various diseases and be faster in fighting them.

Although the body has an automatic immune system, in fact, the immune system can weaken at any certain time.

Most people do not have serious side effects when given the vaccine.

The most common side effects are usually only the taste of “ant bites” when injected. It’s very light and disappears by itself.

Vaccine Side Effects

However, the administration of vaccines into the human body is not one hundred percent free from risks and side effects, sometimes it can still occur after immunization.

Just like other medical products, even our daily diet, vaccines also have side effects.

The vaccine contains various components to make it effective and provide protection to the person receiving it. However, these vaccine components have the potential to pose a risk of unwanted reactions.

Based on the research, 95% of the side effects of the vaccine are mild, such as pain in injections or fever that usually lasts at least 48 hours after being vaccinated.

The most common side effects of the vaccine include the following:

Pain, swelling, or redness of the injection marks

One of the most noticeable effects of vaccine injections is the presence of reddish marks in the injection area. This will quickly disappear by itself and should not take a day to disappear. The average will disappear within 12 hours.

Mild fever

Fever is common after getting vaccinated. It usually happens after 12 hours of injection and can last up to two, three days. Call or see a doctor if the fever is more than three days and come back again after a period of 24 hours.


The common tetanus vaccine gives this effect. According to the Centers for Disease Control and Prevention (CDC), these side effects occur in only one in 10 children. Relax, these symptoms do not interfere with daily activities.

Feeling tired

This is the most common response that people get. Fatigue is a form of the body’s process of forming immunity because it requires considerable energy. The CDC estimates one in four people will feel this.


Symptoms to be had and not something serious. Taking headache medications can help overcome these symptoms.

Mild muscle and joint pain.

Researchers can’t be sure what causes some people to get these symptoms after being vaccinated. One theory is that a live vaccine is actually thought to be a disease and responded to by a similar body. It’s going to be gone in a while.

These side effects are very common and as a sign that the body is starting to build up an immune system (protection) against a disease.

In addition, vaccines given to children will not cause autism.

Many studies are looking for a link between vaccines and autism.

The results clearly show that vaccines do not cause autism.

Read also:
Vaccines Cause Autism: Controversies Research

Serious side effects

Although very rarely felt, vaccines can also provide serious side effects.

Allergic reaction

This happens, for example, because the dose of the vaccine given is excessive or a person has a severe allergic reaction.

If you feel excessive pain when getting the vaccine, it is best to contact the hospital or doctor directly.

The doctor will then report the side effects to the Worldwide vaccine adverse event reporting system (VAERS).


This is a case of inflammation in the brain with the most common cause is a bacterial infection. For vaccine side effects, it is estimated that only 0.0001 percent of the 10 million injecting vaccines will have these side effects. Encephalitis itself provide symptoms such as headache to convulsions, fainting and having speech and hearing problems.

Thank you very much for reading Vaccine Side Effects, hopefully useful.

Last Updated on December 17, 2020 Reviewed by Market Health Beauty Team