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AEFI general definition: any untoward medical occurrence which follows administration of an active immunizing agent and which does not necessarily have a causal relationship with the use of a vaccine. The adverse event may be any unfavourable or unintended sign, abnormal laboratory finding, symptom or disease.
Anaphylaxis is an adverse event, a very rare but potentially life-threatening reaction to immunization. Healthcare providers who observe or treat an anaphylactic episode are asked to complete a worksheet in addition to the AEFI form.
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.
Psychological fright and syncope (fainting) 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 may occur.
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.
Describe the importance and process of vaccine safety surveillance in Ontario. Define an adverse event following immunization (AEFI) and understand how this information is collected, reported and used. Understand the roles and responsibilities of public health unit staff in investigating and reporting AEFIs, including COVID-19 vaccine AEFIs.
