Severe allergic reaction to Moderna’s Covid-19 vaccine is “rare,” US health authorities said Friday, with only 10 cases arising from more than four million first doses.
The Centers for Disease Control and Prevention also emphasized that widespread vaccination was critical to fighting the coronavirus pandemic.
“Based on this early monitoring, anaphylaxis after receipt of Moderna Covid-19 vaccine appears to be a rare event,” the CDC said in a report, indicating that none of the reactions resulted in death.
The CDC data documented the 10 cases of anaphylactic shock among a reported 4,041,396 first doses administered between December 21 and January 10.
They were recorded among 108 possible allergic reactions, the CDC said, with six of the cases requiring hospitalization, while the other four were treated in an emergency department setting.
The numbers represent 2.5 cases of anaphylactic shock per one million Moderna injections, compared with 11.1 cases per one million Pfizer injections,…