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The CDC also emphasized that widespread vaccination is essential in the fight against a coronavirus pandemic.
“Based on this preliminary observation, anaphylaxis after receiving the Moderna vaccine is a rare occurrence,” the CDC said, emphasizing that none of the 10 cases resulted in death.
The CDC found that 10 of 4,041,396 people who received the Moderna vaccine developed anaphylactic shock. These 4 million. people were vaccinated between December 21 and January 10.
Of the 10 cases of anaphylactic shock, six people were hospitalized, while the other four improved in the emergency department and were discharged for treatment.
According to the CDC, a total of 108 potentially allergic reactions have been reported.
This means that there are 2.5 cases of anaphylactic shock per million shots with Moderna. By comparison, anaphylactic shock affects 11.1 people in a million after receiving the Pfizer-BioNTech vaccine.
“The clinical and epidemiological data on anaphylaxis after vaccination with Moderna are similar to those for vaccination with Pfizer-BioNTech,” the CDC said.
Of the 10 cases of severe anaphylaxis, all occurred in women aged 31 to 63, and nine of them had a history of allergic reactions, but not to vaccines.
Anaphylactic shock is more common in women after the Pfizer-BioNTech vaccine. Experts say this may be due to the fact that almost twice as many women are vaccinated today as men.
Of the 10 women who developed anaphylactic shock, nine developed symptoms 15 minutes later. after vaccination and 30 minutes for one.
The CDC emphasized that vaccination centers must be trained to treat severe allergic reactions and be able to transport patients to the hospital if necessary.
“Widespread vaccination against COVID-19 with highly effective vaccines is a critical tool in controlling the pandemic and saving lives,” the agency added.
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