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[12 years old and over] Effects and side effects of the new coronavirus vaccine

[Inquiries] Shibuya Ward Novel Coronavirus Vaccine Call Center (Phone: 0120-045-405 )
[Inquiries] Regional Health Division Vaccination Section (Phone: 03-3463-1269)

The website of the Ministry of Health, Labor and Welfare provides information about the new coronavirus vaccine, including information about the new coronavirus vaccine, information about the vaccine, answers to questions, and notices for everyone involved in vaccination.

Guidance brochure about inoculation

(Note) Inoculation of Takeda vaccine (Novavacs) is carried out at a large-scale vaccination venue in Tokyo.

effects and side effects

effect

It has been reported that people who have been vaccinated for the third time are less likely to be infected with the new coronavirus or become severely ill than those who have not been vaccinated. For details, please check the efficacy and safety of the new corona vaccine (Ministry of Health, Labor and Welfare website) or the new corona vaccine Q&A (Ministry of Health , Labor and Welfare website).

side reaction

In the pharmaceutical approval of Pfizer and Moderna, there is a difference in the appearance of some symptoms within 7 days after the 3rd vaccination compared to those after the 1st and 2nd vaccinations for both vaccines. However, most of the symptoms were similar to those after the first and second vaccinations. For details, please refer to the side effects of the new coronavirus vaccine (Ministry of Health, Labor and Welfare website) or the Q&A of the new coronavirus vaccine "What kind of side effects are there in the additional (third) vaccination? Are they more severe than the second?" (Ministry of Health, Labor and Welfare website) Please confirm.

In the case of Pfizer (1st and 2nd vaccination) (From the attached document of Comminity)

symptoms Percentage of people with symptoms
Pain at the injection site, feeling tired 50 percent or more
Headache, muscle pain, chills, joint pain 10 to 50 percent
Fever, swelling, rash, lymphadenopathy (note) 1 to 10 percent

(Note) Lymph node data for Pfizer vaccines are within one month after vaccination.

In the case of Moderna (first and second vaccinations) (From the package insert of the COVID-19 vaccine Moderna)

symptoms Percentage of people with symptoms
Pain at the injection site, feeling tired, headache 50 percent or more
muscle pain, chills, joint pain, lymphadenopathy 10 to 50 percent
fever, swelling, rash, constipation 1 to 10 percent

Quoted from: New Corona Vaccine Q&A “What kind of adverse reactions have been recognized so far?” (Ministry of Health, Labor and Welfare website)

About some symptoms (myocarditis, pericarditis)

Males in their teens and twenties tended to have a lower incidence of myocarditis after vaccination with the Pfizer vaccine than with the Moderna vaccine. The number of suspected cases of myocarditis and pericarditis after the 3rd dose was lower than after the 1st and 2nd doses. (Source: Report material of the 77th Health Science Council Immunization/Vaccine Subcommittee Adverse Reactions Examination Subcommittee)


Inquiries about side reactions

Please contact the Tokyo Novel Coronavirus Vaccine Adverse Reaction Consultation Center (03-6258-5802).

Information and Q&A about vaccines

For more information on vaccines, see updates from the country.

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