Fever is only one of the common side effects after immunization for kids below 5 years old. According to a study, there's no certain explanation why these side effects occur. Other reactions to vaccines include redness, swelling, or hard lump. And we really don't have to panic since it will pass in a matter of hours.
Nagre-react po kase yung katawan ng bata sa gamot na tinurok sa kanya. Pero yung ibang baby hindi tinatablan.