Japanese encephalitis vaccination

Japanese encephalitis is a disease caused by the Japanese encephalitis virus. The virus invades the human body by being bitten by a mosquito called Culex pipiens, which carries this virus. It is not contagious from person to person. It is a disease that tends to spread in the summer when there are many mosquitoes. When infected and severe, acute encephalitis with symptoms such as high fever, headache, vomiting, disturbance of consciousness, and convulsions may occur, and it is a disease with a high mortality rate. In addition, it is a disease that is likely to leave various serious aftereffects of the central nervous system even if it survives.

A new dry-cell-cultured Japanese encephalitis vaccine is currently being used in place of the previously used vaccine (derived from mouse brain). The dried cell-culture Japanese encephalitis vaccine is a highly purified product that uses cells to propagate the virus, inactivates it with formalin, etc. (to eliminate pathogenicity). rice field. In addition, people who have received Japanese encephalitis vaccination using conventional vaccines can also be vaccinated with the dried cell culture Japanese encephalitis vaccine.

Target person

Children born after April 2, 2007

Children born on or after April 2, 2007 are legally vaccinated between the ages of 6 months and 7 years and 6 months for the first stage, and between 9 and 13 years old for the second stage. The standard vaccination age is as follows.

Standard age for vaccination
period Standard Age and Number of Inoculations
1st term first time 2 doses at 3 years old
Phase 1 added 1 dose at 4 years old
Second stage 1 dose at age 9

Meguro Ward is currently sending 3 Japanese encephalitis stage 1 pre-screening slips at the end of the month before the third birthday month.
In addition, since the 2nd period was not subject to active recommendation, we refrained from sending the preliminary examination form. I will send it to you at the end of the month.
In addition, for those born between April 1, 2003 and March 31, 2007, who had refrained from sending the second screening questionnaire, we will send the second screening questionnaire at the end of July 2016. bottom.

Person who is targeted for exception inoculation

Those born between April 2, 1995 and April 1, 2007

Since there was a case of a person becoming seriously ill after being vaccinated against Japanese encephalitis, proactively refraining from recommending vaccination (not providing information on vaccination) from FY2005 to FY2009 resulted in a decrease in the number of vaccinations. There are many children who are short of (all 4 times). In response to this, the Ordinance for Enforcement of the Preventive Vaccination Law was amended on April 1, 2013, and from FY2005 to FY2009, those who missed the opportunity to receive Japanese Encephalitis vaccination due to the active withdrawal from recommendation (1995) For those born between April 2nd and April 1st, 2007), as an exception, those aged between 4 and 20 years old can now receive the Japanese encephalitis routine vaccination at public expense.

Those who will be 18 years old in 2021

In 2021, in order to encourage those who missed the second vaccination opportunity to be vaccinated, in 2021, for those born between April 2, 2003 and April 1, 2004, a preliminary medical examination form ( for special vaccination) was shipped in late July 2021.

Those born between April 2, 2007 and October 1, 2009

Those who do not have enough vaccinations for Phase 1 (total of 3 doses) can be vaccinated at the age of 9 to 13 to make up for the shortfall.

Electronic application

If you have lost your health checkup slip or if your child has moved to Meguro Ward and has not been vaccinated, you can apply for issuance of a health checkup slip online here.
Electronic application (Tokyo joint electronic application/notification service)

Required number of doses and intervals between doses

Please check the number of vaccinations you have taken so far with your maternal and child health handbook, etc. If the number of vaccinations is less than 4, please inoculate the missing number of times.
The vaccination interval varies depending on the vaccination history (when and how many times you have been vaccinated), so please consult with your vaccination doctor or inquire.
In addition, if you do not have enough health checkup tickets, please contact theHealth and Prevention Division Immunization Section .

accompanied by a guardian

As a general rule, children must be accompanied by a guardian when they are vaccinated. can also be vaccinated.
However, if the child is between the ages of 13 and 16 and the guardian has read the "notice" given by the city and wishes to have the child vaccinated, the separate "Japanese Encephalitis Vaccination Consent Form" must be submitted. It must be signed by a parent and submitted to the medical institution along with the screening form.

Related pages

child vaccination

Information on how to notify Meguro Ward about routine immunizations for children and how to inoculate.

Link to external site Opens in a new window. Japanese encephalitis (Ministry of Health, Labor and Welfare)

This is the page of the Ministry of Health, Labor and Welfare.

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Person in charge ofhealth prevention section vaccination is in charge of this page.

Address 〒153-8573 2-19-15 Kamimeguro, Meguro-ku

Telephone 03-5722-7047

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