Boosters Cause Fewer Side Effects

  • By Bae Jun-yong

    November 26, 2021 12:53

    Booster jabs seem to cause fewer side effects than first or second coronavirus vaccinations.

    Some 2.26 million Koreans had had their booster shots as of Thursday morning, according to the Korea Disease Control and Prevention Agency, and only 19.4 percent have reported side effects, compared to 34.3 percent of those who had complained of side effects after earlier shots.

    Some 17 percent of booster recipients complained of local reactions like swelling at the site of injection and 18.3 percent of general reactions like muscle pain and fever. The proportions were 31.9 percent and 33.7 percent respectively for the earlier shots.

    "The U.S. National Institutes of Health has also found that booster side effects are similar to earlier vaccinations and that there's no statistically significant difference between ages or vaccines," the KDCA said.

    KDCA chief Jeong Eun-kyeong said, "We hope to finish giving booster jabs to the over-60s in December, but interpersonal contact needs to be reduced to some extent for four weeks" before their immunity is boosted.

    Meanwhile, concerns are rising abroad about a new South African variant of COVID-19 that may be more virulent. The Guardian daily warned of the emergence of B.1.1.529, which has been described as "the worst COVID-19 variant yet." The variant has 32 mutations in the spike protein, compared to 16 for the Delta variant, which suggests it could break through immunity more easily.

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