Infant vaccination (6 months to 4 years old)

Featured information 

At this time, the implementation period of the special temporary vaccination is until March 31, 2023 . For infant vaccination, it takes about 11 weeks to complete the first vaccination, and it is necessary to wait two weeks before and after other vaccines, except influenza vaccine .

When considering infant vaccination

Infant vaccination is now available

On October 13th (Thursday), the relevant ministerial ordinance was revised, and from October 24th (Monday), infants (6 months to 4 years old) can be vaccinated. Among infants (6 months to 4 years old) infected with COVID-19, the percentage of severe cases is small, but the number of cases leading to severe cases is increasing as the number of new infections increases due to the epidemic of the Omicron strain. Something has been reported. In addition, there are cases of death even in infants without underlying diseases.

Please carefully check the effectiveness, safety, side effects, etc. of vaccination before considering vaccination.

Effects of infant vaccination

Studies (clinical trials) to confirm the efficacy and safety of vaccines have been conducted in multiple countries overseas for infants aged 6 months to 4 years.

Approximately 1,100 infants were analyzed to see how much the new coronavirus vaccine would reduce symptoms even if they were infected with the new coronavirus (preventive effect), and the results were as follows: The effect after 7 days is reported to be 73.2%.

Source: From the appraisal report

About the safety of infant vaccination

In a clinical trial that investigated symptoms after receiving the vaccine, when looking at the specific symptoms after the first to third doses of vaccination, there was not much difference in symptoms depending on the number of vaccinations, and most of the symptoms were mild or moderate. was.

Based on the information available at this time, it is reported that there are no serious safety concerns.

Symptoms that appeared 7 days after vaccination
age Symptoms (Occurrence rate: after 1st vaccination → after 2nd vaccination → after 3rd vaccination)
6 months to 1 year old

Irritability (bad mood) 51.2%→47.4%→43.6%

Decreased appetite 22.2% → 22.2% → 20.2%

Somnolence (feeling sleepy) 27.0%→23.8%→19.9%

Tenderness 16.6%→15.0%→16.0%

Fever 7.2% → 7.4% → 6.8%

Swelling (injection site swelling) 3.9% → 3.9% → 2.7%

Redness 10.6% → 9.3% → 7.1%

2 to 4 years old

Pain 30.8% → 31.0% → 26.7%

Fatigue 29.7% → 25.7% → 24.5%

Redness 8.8% → 11.4% → 10.9%

Diarrhea 7.7%→6.7%→5.1%

Fever 5.2% → 4.9% → 5.1%

Headache 4.5% → 4.6% → 4.9%

Swelling (injection site swelling) 3.7% → 5.7% → 3.1%

Vomiting 3.0%→3.4%→1.6%

Chills 2.3% → 3.0% → 3.3%

Muscle pain 2.4% → 2.6% → 2.0%

Joint pain 0.8%→1.4%→1.3%

Source: From the appraisal report

Overview of infant vaccination

Inoculation target person

6 months to 4 years old

  • (Those who are 6 months old) You can get vaccinated from the day before you turn 6 months old.
  • (For 4-year-olds) You can get vaccinated until the day before your 5th birthday.

*If a child is 4 years old or younger at the time of the first vaccination and reaches the day before his or her 5th birthday at the time of the second or third vaccination, the infant vaccine is also used for the second and third vaccinations .

*If the child reaches the day before their 5th birthday before the first vaccination, they will be vaccinated with the pediatric vaccine. Vaccines to be used and vaccination venues are different, so please check " Children's vaccination (1st and 2nd vaccination) " for details.

Inoculation cost

We can inoculate for free (public expense).

Vaccine used

Pfizer Vaccines for Infants (6 months to 4 years)

*The active ingredient is 1/10 that of the Pfizer vaccine for 12 years and older.

About vaccination interval with other vaccines such as influenza vaccine
  • The new corona vaccine and influenza vaccine can be vaccinated at the same time without leaving an inoculation interval.
  • Vaccines other than influenza vaccine cannot be given at the same time. Each person can be vaccinated two weeks after receiving the other vaccine.

Number of inoculations

3 doses (3 doses complete the first dose)

  • A second dose can be given 3 weeks after the first dose.
  • A third vaccination can be given at an interval of 8 weeks after the second vaccination.

*If the interval from the first vaccination exceeds 3 weeks, or if the interval from the second vaccination exceeds 8 weeks, please receive the second or third vaccination as soon as possible.

About sending vaccination tickets

On November 14th (Monday) , we sent a batch of vaccination tickets to children aged 6 months to 4 years old. From now on, we will send out the vaccination ticket in the month before the month when the child turns 6 months old.

If you have lost your vaccination ticket, please apply electronically or by mailing the application form. It takes about 1-2 weeks from the time you apply until you receive the vaccination ticket.

Electronic application

Please open the application screen of the Bunkyo City electronic application/notification system from the following link and enter the necessary information.

<new coronavirus vaccine> Reception desk of inoculation ticket issuance [infants] (we link to outside page)

*We also accept proxy applications at the call center.

Phone number: 0120-168-185 (9:00 am to 8:00 pm daily)

Application by mail

Please send the vaccination ticket issuance application form to the mailing address.

Documents to be submitted

* If someone other than a guardian receives the certificate, the above power of attorney is required. (The delegator will be the guardian)

mailing address
  • 1-16-21 Kasuga, Bunkyo-ku, Tokyo 112-8555 Bunkyo Ward Prevention Division Infectious Disease Control Section

About the vaccination venue

In addition to individual vaccinations by designated medical institutions in the city, we will administer group vaccinations at venues set up by the city.

mass vaccination

Group vaccination venue list (as of November 25, 2022)

Group vaccination venue address Vaccine to use

Bunkyo General Gymnasium

7-1-2 Hongo

pfizer for infants

*There is no special parking lot for the group vaccination venue. Please come on foot or by public transportation. Please do not park on the street around the venue as it will cause inconvenience to facility users and neighbors.

Individual inoculation

We carry out inoculation in city designated medical institution.

List of medical institutions conducting individual vaccination (as of November 9, 2022) (PDF file; 521KB)

* Target medical institutions will be updated as needed.


1. If you cannot come to the medical institution on the reserved date and time, please be sure to contact the medical institution in advance. Please help us to prevent vaccine loss.

2. In order to avoid congestion at medical institutions, please fill out the "pre-examination sheet" in advance and bring it with you on the day of vaccination.

Current reservation status

Number of reservations available (as of December 28, 10:00)
Vaccine type Reservable number
January vaccination

Pfizer (for infants)

20 frames

January 2023 Reservation quota status by day (as of 10:00 on December 28) (PDF file; 458KB)

(Note) We started accepting reservations for January from 9:00 am on Wednesday, December 14th.
(Note) From noon on Friday, December 23, we have added a reservation slot for January.

Reservation method

Group vaccination venue

Please make a reservation through the reservation site or call center.

Reservation site

Reservation site
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call center

0120-168-185 (toll free)

If you cannot connect to a toll-free number such as an IP phone, please call 03-6747-4593 (charges apply).

(From 9:00 a.m. to 8:00 p.m. on weekdays, weekends and holidays)

Since it will be difficult to connect to the call center on the reservation start date, please make a reservation from the above reservation site.

When calling the call center, please check the phone number carefully to avoid dialing the wrong number.

*If you wish to cancel, please follow the procedure on the reservation site or contact the call center.

Individual inoculation

Please contact each medical institution directly to make a reservation. (We do not accept reservations at the city reservation site or call center.)
*In case of cancellation, please contact each medical institution directly.

About the day of vaccination


When you come to the vaccination venue, please bring the following items.

1. inoculation ticket

2. Identification documents for the child to be vaccinated (My number card, health insurance card, etc.)

3. Preliminary examination slip (1 sheet per inoculation)

*A guardian's signature is required on the vaccination form. If there is no parental signature on the screening form, vaccination cannot be done.
4. Maternal and Child Health Handbook

*Please be sure to bring your Maternal and Child Health Handbook to check the vaccination history of your child.

Parents must be present on the day of vaccination. No vaccination will be administered without parental consent.

If you are unable to accompany your child for some special reason, your relatives, etc. may be entrusted to accompany you. The letter of proxy must be filled out by the parent/guardian by the day of vaccination and must be brought by the accompanying person.


Power of attorney form (PDF file; 72KB)

Parent-child vaccination at large-scale vaccination venues in Tokyo

At large-scale vaccination venues in Tokyo, the 1st, 2nd, and 3rd doses are administered to infants aged 6 months to 4 years, and parents are also vaccinated on these occasions.

Inoculation target

  • Infants from 6 months to 4 years old (children living in Tokyo or using nursery schools or kindergartens in Tokyo)
  • Parents, etc. of the above who wish to be vaccinated (only bivalent vaccine for Omicron strain)

Inoculation venue

Tokyo Metropolitan Teachers and Staff Mutual Aid Association Sanraku Hospital Vaccination Venue

(2-5 Surugadai, Kanda, Chiyoda-ku)

Implementation date and time

From 13:00 to 14:00 on the second Friday of each month (expanded depending on reservation status)

Vaccine used

  • Infants: Pfizer Vaccines for Infants
  • Parents, etc.: Pfizer Vaccine (Omicron strain vaccine)

Reservation method

Please call the Tokyo Call Center (0570-034-899).


  • If you are a parent or other person who wishes to be vaccinated , please call the venue (03-3292-3981) by noon on the day of the reservation for the infant vaccination, and bring your vaccination ticket, identification documents, and documents confirming the date of the previous vaccination ( Please bring your vaccination certificate, etc.).

* “Guardian” refers to a person who has parental authority or a guardian.

*If the guardian cannot accompany the child for special reasons, an appropriate person such as a relative who is familiar with the child's health condition can accompany the child upon authorization from the guardian.

  • About inoculation to protectors, it applies to person 12 years or older who completed the first (1st, 2nd) inoculation.
  • For the latest information on large-scale vaccination venues in Tokyo, please check the " Tokyo Novel Coronavirus Vaccination Portal Site " (link to an external page).

Ministry of Health, Labor and Welfare's information on infant vaccination

The Ministry of Health, Labor and Welfare publishes information and Q&A regarding infant vaccination. Please see the link below.

▼ " About the new corona vaccine > Notice about vaccination for children aged 6 months to 4 years old (infant vaccination) " (links to an external page)

▼" New Corona Vaccine Q&A (Ministry of Health, Labor and Welfare) " (links to an external page)

Contact information

Bunkyo Ward Public Health Department

New Coronavirus Vaccination Call Center Weekdays, Saturdays, Sundays, and holidays from 9:00 a.m. to 8:00 p.m. (excluding December 29th to January 3rd)

Phone number: 0120-168-185 (toll free)
If you cannot connect to a toll-free number such as an IP phone, please call 03-6747-4593 (charges apply).

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