Future Measures Following the Discontinuation of the Tetravalent Vaccine Production and Sales

Due to the introduction of the pentavalent vaccine as a routine immunization from April 1, 2024, the production and sale of the quadrivalent vaccine have been discontinued.

Therefore, the DPT vaccine can only be administered while the vaccine is in stock. If you have received the DPT vaccine but have not completed all four doses, please get vaccinated as soon as possible.

In addition, for routine vaccinations, the same type of vaccine is generally administered the required number of times. However, if there are unavoidable circumstances that prevent following the standard method, it is possible to consult with a medical institution and decide to switch to vaccination with either the "DPT (Diphtheria, Pertussis, Tetanus) + Inactivated Polio Vaccine" or the "Pentavalent Vaccine." (Please check the examples of vaccination below.)

Please note that the vaccine stock status may vary depending on the medical institution, so please consult the medical institution.

 

Example of vaccination when switching from the quadrivalent combined vaccine

• If you have received three doses of the DPT-IPV vaccine and Hib vaccine ⇒ receive one additional dose of the pentavalent vaccine
• If you have received 3 doses of the quadrivalent vaccine and 4 doses of the Hib vaccine ⇒ Confirm the availability of the vaccine and consult with a medical institution to receive the vaccination by either of the following methods

1. Administer one additional dose each of the combined triple vaccine and the inactivated polio vaccine
2. One additional dose of the pentavalent vaccine

About the Pre-Vaccination Screening Questionnaire When Switching Vaccines

When switching from the four-component combined vaccine, it is necessary to replace the medical questionnaire with the one for the vaccine to be used (either the "three-component combined vaccine + inactivated polio vaccine" or the "five-component combined vaccine").

For more details, please contact the vaccination medical institution or the Health Center (042-378-3421).