It's reported that a few of these people had previous allergies to other medications. For all of them the adverse reactions were shown within the 15 minute window.
CDC issued new guidelines during the last weekend.
- All people who get a COVID-19 vaccine should be monitored on-site. People with a history of severe allergic reactions should be monitored for 30 minutes after getting the vaccine. All other people should be monitored for 15 minutes after getting the vaccine.
- Vaccination providers should have appropriate medications and equipment—such as epinephrine, antihistamines, stethoscopes, blood pressure cuffs, and timing devices to check your pulse—at all COVID-19 vaccination sites.
- If you experience a severe allergic reaction after getting a COVID-19 vaccine, vaccination providers should provide rapid care and call for emergency medical services. You should continue to be monitored in a medical facility for at least several hours.
The CDC is advising that people who have a history of allergic reactions to any of the ingredients included in the shots talk with their doctor before getting vaccinated.
The full list of ingredients of the Pfizer - which include sodium chloride, potassium chloride, and a number of lipids - can be found on the Pfizer vaccine’s prescribing information chart.
Moderna’s vaccine prescribing information service lists the ingredients, which include various lipids, sodium acetate, and tromethamine.
Another ingredient in question is
polyethylene glycol (PEG), a laxative commonly used with colonoscopies. Few cases of anaphylactic reaction have been linked to polyethylene glycol, but the reaction has been reported in the past.
The Moderna and Pfizer vaccines
don’t include preservatives, and the vial stoppers are not made with latex.
People who’ve had a serious allergic reaction to any injectable medicine or vaccine in the past should consult their doctor.
Whatever the case is the expert opinion is - I
n general, the benefits of the vaccine far outweigh the rare risks.
