Cases of a severe allergic reaction to the covid-19 Moderna vaccine are “rare” and have been limited to just ten of the more than 4 million who received the first doses in the United States, health officials said Friday.
None of these ten cases resulted in the death of the inoculated person.
“According to these preliminary checks, anaphylactic shock (severe allergic reaction, ed.) after injection of covid-19 Modern vaccine is a rare event“The Centers for Disease Control and Prevention (CDC) said in a statement.
The main federal public health agency in the United States studied between December 21, 2020 and January 10, 108 cases reported as allergic reactions to 4,041,396 first doses injected.
The final evaluations determined that only ten cases were anaphylactic reactions, of which six led to hospitalization, and the other four were treated by the emergency services.
This is 2.5 anaphylactic reactions per million injections, much less than the Pfizer vaccine, which recorded a level of 11.5 per million vaccinations, according to a previous CDC study.
Nine of the 10 people affected had a history of allergic reactions, for example to medicines or food, but not after receiving vaccines.
Symptoms appeared within 15 minutes of injection in nine cases and within half an hour of the remaining case.
These are ten women between the ages of 31 and 63.
The majority of people who had allergic reactions to the Pfizer vaccine were also women, but this may be due to the fact that two-thirds of those who inoculated the first dose of the product from that laboratory were women.
The facilities where the vaccinations were performed are equipped to cope with severe allergic reactions and to transfer patients to the hospital, if necessary, the CDC said.