Signs of a Vaccine Reaction


Vaccine reactions can range from minor allergic reactions to more serious reactions that require hospitalization and long recovery periods. Some vaccine reactions are even fatal. It is important that you know the signs and symptoms of a reaction so that you can act quickly to prevent serious injury. Read on for some of the most common vaccine reactions.

Types of Reactions or Side Effects

Mild and Common Side Effects

The most common side effects of vaccines are mild and can be treated at home. These side effects are very common and are usually not reason to worry. Two of the most common reactions you can expect are soreness around the vaccination site and a low-grade fever. There may also be some redness and swelling around the site. These symptoms should go away on their own within a day or two. If they last longer, it could be a sign of a more serious reaction.

Serious Reactions

A high fever can be a sign of a serious allergic reaction to a vaccine. Other symptoms may include hives, difficulty breathing, vomiting and dizziness. These symptoms usually appear within hours of the vaccination. Any of these symptoms is cause for concern and you should seek medical attention immediately.

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Side Effects Associated with Common Vaccines

DTaP Vaccine
While the DTaP vaccine is considered safe, it can cause harmful reactions that include seizures, high fever, long-term seizures, coma and brain damage.

Influenza Vaccine
Reactions to the influenza vaccine are usually mild and can include coughing, body aches and fatigue. However, some people do experience more serious problems. There is a very limited occurrence of Guillain-Barré Syndrome after the vaccine. Children who receive the influenza vaccine, pneumonia vaccine and DTaP vaccine at the same time have an increased risk of fever that could cause a seizure.

MMR Vaccine
While reactions to the MMR vaccine are typically mild, some serious reactions can occur. The fever caused by the vaccine and cause seizure. Teenage girls or adult women who get the vaccine may experience pain in their joints. Other side effects include a body rash and temporary low platelet count. In severe cases, the vaccine can cause deafness, coma, lifelong issues with seizures and brain damage.

MMRV Vaccine
The MMRV vaccine has a slightly higher risk of seizures in children than the MMR vaccine. The vaccine can also cause low platelet counts, pneumonia, meningitis and encephalitis. The Varicella part of the vaccine may also cause a full body rash. Other serious, but rare reactions include long-term seizures, deafness, coma and brain damage.

Rabies Vaccine
Although rare, there have been cases of Guillain Barré syndrome after the vaccine has been given.

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Rotavirus Vaccine
In rare cases, the Rotavirus vaccine has been shown to cause intussusception, which is a blockage of the bowels that has to be treated in the hospital and can sometimes require surgery.

Td Vaccine
With the Td vaccine, there are rare cases of swelling and bleeding around the injection site.

Varicella (Chickenpox) Vaccine
In some cases, the Varicella vaccine can cause a fever that can lead to a seizure. Other reactions can include pneumonia or meningitis. A person receiving the vaccine may also develop a full body rash.

Live Zoster Vaccine
The Live Zoster or Shingles vaccine can actually cause an outbreak of the shingles, encephalitis.

Yellow Fever Vaccine
In rare cases, the Yellow Fever vaccine can lead to a severe allergic reaction. Some people develop a reaction of the nervous system. Others have developed organ failure, which can lead to death.

Information from the CDC.

You only have 3 years to file a claim.

It's important that you start the process as soon as possible.
See If You Have a Case


If you have any doubts or concerns about your next vaccination, always consult your physician about the possible risks involved. If you have suffered an injury, you may be entitled to compensation. Be sure to contact one of the skilled attorneys at Sadaka Associates for a free consultation.


You Only Have Three Years To File Your Claim

The first step in helping yourself or a loved one after a serious vaccine related injury is to contact us for a free review of your case.

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