Over 1,200 adverse events in the United States after receiving the Moderna Covid-19 vaccine


After receiving the Moderna Covid-19 vaccine on January 10, over 1,200 adverse events were reported, with 10 cases classified as anaphylaxis. This comes from a report released Friday by the U.S. Centers for Disease Control and Prevention (CDC).

The U.S. Food and Drug Administration issued an emergency approval on December 18, 2020 for the Moderna Covid-19 vaccine, which is given in two doses one month apart to prevent Covid-19, Xinhua news agency reported.

As of January 10, 40,41,396 first doses of the Moderna Covid-19 vaccine had been administered in the United States and reports of 1,266 post-receipt of the Moderna Covid-19 vaccine had been submitted to the Vaccine Adverse Event Reporting System to the CDC.

Among these, 108 case reports were identified for further review as possible cases of severe allergic reactions, including anaphylaxis.

Anaphylaxis is a life-threatening allergic reaction that rarely occurs after vaccination and typically starts within minutes to hours.

Among those case reports, 10 cases were classified as anaphylaxis, a rate of 2.5 anaphylaxis cases per million Moderna Covid-19 vaccine doses administered, according to the CDC.

The mean time from receiving the vaccine to showing symptoms was 7.5 minutes.

The CDC urged sites that deliver Covid-19 vaccines to adhere to CDC guidelines, including screening recipients for contraindications and precautions, providing the necessary supplies and staff to treat the anaphylaxis, implementing the recommended Observation periods after vaccination and immediate treatment of suspected anaphylaxis with intramuscular adrenaline injection.


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(Only the headline and image of this report may have been revised by Business Standard staff. The rest of the content is automatically generated from a syndicated feed.)

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