What are the side effects of vaccines in babies?

There are many vaccinations required for babies and each vaccine has its own side effects. Not all babies will experience side effects while some will. Call your doctor before the child’s appointment to find out how much Baby Tylenol to administer to help alleviate some of the symptoms. The following are some of the side effects your infant might experience from various vaccines.

Hepatitis B

Hepatitis B is given to infants and serious side effects are very rare. The side effects that are more common include tenderness or redness at the injection site and fever. If your child is currently sick then the immunization should be delayed. If your child experienced an allergic reaction at a previous Hepatitis B vaccination then additional series should be avoided.

Pneumococcal Vaccine PCV

This vaccine protects against bacterial meningitis, pneumonia, and blood infections. Side effects may include a low fever, swelling or tenderness at injection site, or even redness. Previous reactions to the vaccine should warrant stopping this particular vaccination series.
DTap (Diphtheria, Tetanus, Pertussis)
The side effects of this vaccine include tiredness, crankiness, fever, loss of appetite, swelling at injection site along with redness and tenderness. Some children, in rare instances, may experience seizures. Most children have no side effects, but there is a small risk of complication.


The Hib vaccine is for Haemophilus influenza. This bacteria causes meningitis in children and the Hib vaccine helps prevent that. Possible side effects include tenderness, swelling and/or redness at injection site.


The IPV vaccine fights polio, which can cause paralysis. Risks of the polio vaccine include redness or soreness at the injection site. Other effects include fever. Children that should not have this vaccine include kids with an allergy to polymyxin, neomycin, or streptomycin.

Flu Shot

The Flu shot, also called the influenza shot, is given to protect against this viral infection. Side effects of this shot include swelling, soreness or redness at the injection site. Some individuals may have body aches and a low fever. The nasal spray vaccine may cause mild flu symptoms since it is made from a live virus. Very rarely does anyone experience a severe reaction to the flu shot.

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