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Introduction. Adverse Events Following Immunization (AEFI) definitions. When and how to report an AEFI. Reporting adverse reactions following administration of a passive immunizing agent. Investigating and managing AEFI. Proof of casual association.
An adverse reaction is an undesirable side effect that occurs after a vaccination. Vaccine adverse reactions are classified as 1) local, 2) systemic, or 3) allergic (additional information). Local reactions (e.g., redness) are usually the least severe and most frequent.
An adverse event following immunization (AEFI) is any untoward medical occurrence in a vaccine that follows immunization. It does not necessarily have a causal relationship with the vaccine or the immunization process.
All vaccines have the potential to cause an adverse reaction. In order to minimize adverse reactions, patients should be carefully screened for precautions and contraindications before vaccine is administered. Even with careful screening, reactions catg.d/p may occur. These reactions can vary from trivial and inconven- ient (e.g., soreness ...
When adverse reactions do occur, they can range from minor (e.g., soreness, itching) to serious (e.g., anaphylaxis). Be prepared. Vaccinators should know how to recognize allergic reactions, including anaphylaxis. Have a plan and supplies ready to provide appropriate medical care if an event occurs. Medical Management of Vaccine Reactions in Adults
Nov 11, 2020 · When adverse events following immunisation (AEFIs) do occur, it is important that they are reported, especially if they are serious, even if they are unlikely to have been caused by the vaccine itself. This ongoing surveillance is essential to ensure vaccine safety.
The purpose of this review is 2-fold: first, to provide an understanding of the basic concepts that are relevant to vaccine pharmacovigilance and secondly, to provide an overview of adverse vaccine and immunization reactions, including COVID-19 vaccines.
