At the mass vaccination venue, it turned out that some of the recipients who were scheduled to receive the Omicron strain (BA.4-5) vaccine were inoculated with the Omicron strain (BA.1) vaccine.

1. Occurrence date and time October 30, 2020 (Sunday) from 9:00 a.m. to 9:50 a.m.
2. Inoculation place Chuo Ward Nihonbashi Health Center
3. Number of people vaccinated
   37 people
4. Type of vaccine Planned vaccine Pfizer Omicron strain (BA.4-5) vaccine Vaccine actually administered Pfizer Omicron strain (BA.1) vaccine
5. cause
   When switching to the BA.4-5 vaccine, the collection of the BA.1 vaccine stored at the same vaccination venue was not completed, and the confirmation of the vaccine to be used in the preparation stage before the start of vaccination. was insufficient.
6. Response to the person concerned We will contact the person in question individually, apologize and explain, and then send a document to explain the details again. In addition, at present, it is not possible to additionally inoculate BA.4-5 vaccines to those who have been vaccinated against BA.1, but we are working with the government to make it possible for those who wish to be vaccinated. To go.