Pneumococcal infection is one the common infectious disease in the world. Pneumococcal conjugate vaccine may decrease the incidence of pneumococcal infection. In Taiwan, infants usually received 2 primary dosing pneumococcal conjugate vaccines . The third primary dose of pneumococcal conjugate vaccine is still not included in public health insurance. Some infants in Taiwan did not receive the third primary dose of pneumococcal vaccine. Share decision making (SDM) with patient decision aids (PDA) provide information to infant family and to help them in making decisions about their baby's vaccination. We develop a PDA administered for baby's family to decide whether the baby will receive the third primary dosing pneumococcal conjugate vaccine.

Pneumococcal infection is one of the most major infectious disease that cause morbidity and mortality due to pneumonia, meningitis, acute otitis media, acute rhinosinusitis and septicemia. Although pneumococcal infection may affect people in all ages, children below 5-year-old and adults over 65-year-old are high risk group. Pneumococcal conjugate vaccine has decreased the incidence of pneumococcal infection in the world. Infants usually received 2 primary dosing pneumococcal conjugate vaccines on schedule in Taiwan. The third primary dose of pneumococcal conjugate vaccine is still not included in public health insurance. Many infants' family did not know the information of the third primary dosing pneumococcal conjugate vaccine; and not all of the infants in Taiwan received the third primary dose of pneumococcal vaccine. Share decision making (SDM) with patient decision aids (PDA) is one way to provide information to infants' family and to help them in making decisions about their baby's vaccination. We develop a PDA administered for baby's family to decide whether the baby will receive the third primary dosing pneumococcal conjugate vaccine.

Inclusion Criteria:

The 4-month-old baby's family aged between 20 and 80 years old.

Exclusion Criteria:

The baby's family is not suitable; baby's family cannot understand languages what we said; the participants' baby who have fever or contraindication for self-paid third primary PCV.