It is normal for a child to react to the DPT vaccine. At the injection site, many children develop induration and redness. An increase in body temperature and a deterioration in well-being are also possible.
DPT is a combination vaccine against diphtheria, tetanus, and pertussis. And although it consists of inactivated, that is, killed cells of pathogens, nevertheless, the child may experience some undesirable reactions to the DPT vaccine. The most common and harmless of them is redness and induration at the injection site. A rather large bump with a diameter of up to 7-8 centimeters may appear. The redness can be significant. Unpleasant or painful sensations are also possible, aggravated by touching the injection site and pressing on it. Usually, a local reaction manifests itself almost immediately after the administration of the vaccine and lasts for 3-5 days, after which it gradually disappears. If the bump is too large and does not go away for a long time, you should consult a doctor.
Another possible reaction in a child to the DPT vaccine is an increase in body temperature. Any vaccination is a big burden for the body. The immune system is forced to rebuild and work more actively than usual. As a result of this activity of immune cells, an increase in temperature is observed. If the response is weak, the increase will be negligible. With a reaction of moderate severity, the temperature can go up to 38 ° C. A severe reaction will be accompanied by an increase to 39 or even 40 degrees. At such a high temperature, symptoms such as convulsions or hallucinations are possible. In this case, immediate medical attention is required. Usually, the high temperature lasts no longer than 2-3 days.
The reaction of the child's body to the DPT vaccination can manifest itself in a deterioration in the general condition. The kid will be moody, restless, whiny, or anxious. Many children hide the leg that has been injected with the vaccine. Often there is a deterioration in appetite up to a complete refusal to eat. The child can also become sedentary, lethargic and sleepy, he will refuse to play and walk. In rare cases, diarrhea, nausea, or vomiting occur.
Serious consequences are possible. So, severe swelling may occur at the injection site. If your child is allergic to vaccine components, a rash may develop. In addition, Quincke's edema or even anaphylactic shock is likely. These warning signs usually appear on the first day.