Surveillance of adverse events following immunization in Oman, 2006-2015

: ترصد الأحداث الضارة التالية للتطعيم في عمان، 2006-2015. Objectives: The main objective of the study was to describe the trend of AEFI over the 10-year period, 2006-2015, and compare the findings with a previous report in Oman and reports from other countries. Methods: A descriptive record-based review of AEFI was carried out using the national AEFI surveillance database for the study period, 2006-2015. Results: A total of 890 adverse event reports were received, giving an annual rate during the review period of 21.4 per 100 000 population or 8.3 per 100 000 doses administered. The most frequently reported AEFI were BCG adenitis and local reactions - 31.1 and 4.1 per 100 000 doses respectively. There were no reported deaths. Pentavalent vaccine was responsible for the greatest proportion of adverse events (30%). Local reaction was the most common adverse event among all vaccines administered. The Hexa vaccine caused fewer adverse events compared with the pentavalent vaccine, probably due to the acellular pertussis component - 0.8 versus 1.5 per 100 000 doses administered respectively. Conclusion: The overall rate of AEFI (8.3 per 100 000 doses administered) is comparable to the rate (10.8/100 000 doses) in the previous decade (1996-2005) in Oman. The reported rates for individual vaccines are similar to or below international rates. Conclusion: Le taux global de MAPI (8,3 pour 100 000 doses administrees) est comparable au taux (10,8/100 000 doses) de la decennie precedente (1996-2005) a Oman. Les taux rapportes pour les vaccins individuels sont similaires ou inferieurs aux taux internationaux. الاستنتاج: يمكن مقارنة المعدل الكلي للأحداث الضارة التالية للتطعيم (8.3 لكل 000 100 جرعة معطاة) بالمعدل (10.8 / 000 100 جرعة) المسجل في العقد السابق (2005 - 1996) في عمان. وتاثل معدلات اللقاحات الفردية المبلغ عنها المعدلات الدولية أو تقل عنها.