The choice between DPT5 and free vaccines is based on the child’s condition and the family’s financial situation. If the financial situation is better, you can choose DPT5, which has more protection against Hib infection than the free vaccine. 1. Pentavalent vaccine: this vaccine usually includes polio vaccine and DPT vaccine, plus Hib vaccine; Hib vaccine is a type II vaccine used for the prevention of pneumonia, encephalitis, and septicemia induced by Hib vaccine, which is a kind of vaccine that is not available in the free vaccine. 2. Free vaccine: This kind of vaccine is arranged by the state and is free of charge, including diphtheria vaccine, tetanus vaccine, polio vaccine and whooping cough vaccine, etc., so that children can get good protection. Adverse reactions to vaccination include redness, swelling, pain, and hard nodules in the vaccinated portion, which may cause fever; vaccination is not recommended when suffering from an acute disease or an acute attack of a chronic disease; and after vaccination, it is necessary to observe the vaccine in situ for 30 minutes, and leave only after there are no uncomfortable symptoms. In addition, there are certain contraindications to vaccination, and it is recommended that you consult a specialist before vaccinating your child.