Immunization Error

Related Reaction

Error in vaccine handling

• Exposure to excess heat or cold as a result of inappropriate transport, storage or handling of the vaccine (and its diluents where applicable)

• Systemic or local reactions due to changes in the physical nature of the vaccine, such as agglutination of aluminum based excipients in freeze sensitive vaccines

• Use of a product after the expiry date

• Failure to protect as a result of loss of potency or no viability of an attenuated product

Error in vaccine prescribing or non-adherence to recommendations for use

• Failure to adhere to a contraindication

• Anaphylaxis, disseminated infection with a vaccine-associated poliomyelitis (e.g., Disseminated BCG)

• Failure to adhere to vaccine indications or prescription (dose or schedule)

• Systemic and/or local reactions, neurological, muscular, vascular or bony injury due to incorrect injection site, equipment or technique

Error in administration

• Use of an incorrect diluent or injection of a product other than the intended vaccine

• Failure to vaccinate due to incorrect diluent, reaction due to inherent properties of whatever was administered other than the intended vaccine or diluent

• Incorrect sterile technique or inappropriate procedure with a multi-dose vial

• Infection at or beyond the site of injection