Rate of booster side effects same as after second dose, CDC finds

Side effects from booster shots of Pfizer and Moderna Covid vaccines occur at the same rate as reactions after second doses, CDC report finds

  • A new CDC study looked at 22,191 reports of side effects after people received their booster shot of the Pfizer or Moderna vaccine
  • Un totale di 79.4% reported injection site reactions, such as pain, redness or swelling after the third dose compared to 77.6% after the second dose
  • Reactions such as headache, fever and joint pain were reported in 74.1% other following the booster shot compared to 76.5% after the second dose
  • Medical care was sought by 1.8% of recipients and just 0.1% were hospitalized, but reasons as to why were not available
  • Side effects after booster shots of the Pfizer-BioNTech or Moderna COVID-19 vaccines occur as frequently as they do after second doses, a new report finds.

    Researchers from the Centers for Disease Control and Prevention (Centro per la prevenzione e il controllo delle malattie) looked at reports made to v-safea voluntary, smartphone-based safety surveillance systemafter people received a third dose.

    Di 79 percent had reactions at the injection site, such as pain, redness or swelling, e 74 percent reported other side effects such as fever, headache, chills or joint pain.

    The figures are very similar to the 77 percent of patients who reported injection site side effects and 76 percent who had other reactions after the second dose.

    The CDC says the findings show that there are ‘no unexpected patternsthat occur after booster shots and that third doses appear to be safe and well-tolerated.

    A new CDC study looked at 22,191 reports of side effects after people received their booster shot of the Pfizer or Moderna vaccine. Nella foto: A man gets a third dose of Pfizer's COVID-19 vaccine, settembre 28

    A new CDC study looked at 22,191 reports of side effects after people received their booster shot of the Pfizer or Moderna vaccine. Nella foto: A man gets a third dose of Pfizer’s COVID-19 vaccine, settembre 28

    Un totale di 79.4% reported injection site reactions, such as pain, redness or swelling after the third dose of either vaccine compared to 77.6% after the second dose. 'Systemic reactions' such as headache, febbre, were reported in 74.1% other following the booster shot compared to 76.5% after the second dose

    Un totale di 79.4% reported injection site reactions, such as pain, redness or swelling after the third dose of either vaccine compared to 77.6% after the second dose. ‘Systemic reactionssuch as headache, febbre, were reported in 74.1% other following the booster shot compared to 76.5% after the second dose

    For the rapporto, published on Tuesday, the CDC looked at reports made to the agency’s smartphone tool, v-safe, between August 12, 2021 e settembre 19, 2021.

    The tool uses text messages and web surveys so people who receive the shots can report any symptoms or side effects they are experiencing.

    During the study period, only immunocompromised Americans who received the Pfizer or Moderna vaccines had been authorized to receive booster shots.

    Da allora, third doses have been approved for adults aged 65 o più vecchio, between ages 18 e 64 with underlying conditions, and between ages 18 e 64 who are at high risk due to their jobs or where they livebut only for the Pfizer vaccine.

    Del 2.21 million people who received a booster shot over the course of the study period, c'erano 22,191 reports made to v-safe.

    The report found that 1.8 per cento – o 401 of the recipientssought medical are and just 13, o 0.1 per cento, were hospitalized.

    Reasons as to why people sought medical care or needed to be hospitalized were not included in the v-safe survey,

    Among the recipients, 12,591 reported to v-safe between zero and seven days after receiving all three of their doses.

    Results showed 79.4 percent of people reported injection site reactions after dose 3 rispetto a 77.6 percent after dose 2.

    Inoltre, 74.1 percent reported other side effects following the booster shot compared to 76.5 percent after the second dose.

    Of the adults who received three doses of Moderna, reactions such as itching, dolore, swelling and redness were more common after dose 3 than those two at 84.7 per cento rispetto a 83.5 per cento.

    però, so-called systemic reactionsincluding fatigue, headache, febbre, muscle pain, joint pain and nauseawere more common after the second dose.

    Un totale di 81.3 percent of recipients reported these side effects after dose 2 rispetto a 79 percent after dose 3.

    Allo stesso modo, among Pfizer recipients, 74.1 percent reported injection site side effects after the third dose in comparison with 71.7 percent following second dose.

    Inoltre, systemic reactions were reported less frequently after dose 3 than dose 2 a 69.2 per cento rispetto a 71.7 per cento.

    Cosa c'è di più, of the roughly 9,500 people who reported pain after the third dose of either vaccine, 93.3 percent said their pain was either mild or moderate.

    Appena 6.7 percent had pain that they said made daily activities difficult or impossible to perform.

    ‘Voluntary reports to v-safe found no unexpected patterns of adverse reactions after an additional dose of COVID-19 vaccine,’ hanno scritto gli autori.

    ‘CDC will continue to monitor vaccine safety, including for additional COVID-19 doses.

    Categoria:

    celex

    Tag:

    , , ,

    I commenti sono chiusi.