Adverse reaction reporting rate for COVID-19 vaccines is gradually decreasing

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People line up for COVID-19 vaccines at a vaccination center in southern Seoul on August 6, 2021. (Yonhap)

SEOUL, November 8 (Korea Bizwire)The rate of reports of adverse reactions in people vaccinated against COVID-19 currently stands at around 45 per 10,000 vaccinations in South Korea, the health authority said.

The National Immunization Response Team, which operates under the auspices of the Korea Disease Control and Prevention Agency, said the rate of adverse reaction reports among all COVID- vaccinations 19 remained at about 0.45%, lower than the figure at the start of the immunization program.

As of October 31, the number of reports of adverse reactions stood at 353,535 cases among 78,392,936 vaccinations.

The rate of these reports was 0.53% for the first dose of the COVID-19 vaccine, higher than 0.36% for the second dose. For cross-vaccination, the rate was 0.23 percent.

By gender, the number of adverse reaction reports was 58.2 cases per 10,000 vaccinations for women, higher than the 31.5 cases per 10,000 reported for men.

The rate of these reports was lower for the elderly. In contrast, people aged 30 to 39 scored the highest rate with 56.1 cases per 10,000 vaccinations.

Most of the side effects were mild, such as muscle pain and headache (96.4 percent). Serious side effects, including serious allergic reactions known as anaphylaxis, totaled 12,820 cases, or 3.6 percent of the total.

Per vaccine, the adverse event reporting rate was 0.62% for Moderna, 0.58% for Janssen, 0.52% for AstraZeneca and 0.37% for Pfizer.

MH Lee ([email protected])



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