Community Medicine (PSM) · Immunization and Vaccines (Cold Chain, NIS Schedule, Open Vial Policy)

Adverse Events Following Immunization (AEFI) causality assessment uses which classification system as per WHO (2012) guidelines adopted in India?

  • A WHO-Uppsala Monitoring Centre (UMC) classification
  • B Naranjo algorithm
  • C Brighton Collaboration criteria only
  • D CIOMS criteria
Correct answer: A. WHO-Uppsala Monitoring Centre (UMC) classification

Explanation

India follows the WHO (2012) revised AEFI causality assessment guidelines which use the WHO-UMC (Uppsala Monitoring Centre) classification. This classifies AEFIs into five causality categories: Consistent causal association (vaccine product-related reaction, quality defect, immunization error, immunization anxiety-related, or coincidental). The Naranjo algorithm is used for adverse drug reactions (not vaccines specifically). Brighton Collaboration criteria define case definitions for specific AEFIs but are not the causality assessment system. The 2012 WHO system replaced the older simpler classification.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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