About the symptom called "Moderna Arm", in which the arm turns red after a while after inoculation of Moderna's new coronavirus vaccine, 7% of the people who had the symptom in the first inoculation and the second recurrence It was found by the analysis of the national research group.

People who have been vaccinated with Moderna may have redness or itching on the arm after about a week, and it is also called "Moderna Arm" in Europe and the United States.



A research group of the Ministry of Health, Labor and Welfare investigated the proportion of about 2,300 SDF personnel who had completed two vaccinations, whose arms turned red after the 4th day after vaccination and who remained symptomatic after the 10th day. ..

As a result, 42 people had symptoms after the first vaccination, and more than 80% were in their 30s and 40s.



Of these, 3 people, or 7.1%, developed the disease even after the second vaccination.



In addition, those who did not have symptoms after the first vaccination did not develop symptoms even after the second vaccination.



Suminobu Ito, a visiting professor at Juntendo University School of Medicine, who is the representative of the national research group, said, "I don't know why the second inoculation is less likely to cause symptoms, but since the symptoms do not occur repeatedly, it is different from general allergies. There is a high possibility. Even if symptoms appear, they will subside as the days go by, so I would like you to take measures such as cooling the inoculation site. "