Jacobs Journal of Epidemiology and Preventive Medicine

Achievements and Challenges of The Acute Flaccid Paralysis Surveillance in Oman: 2000-2013

Published on: 2018-02-20

Abstract

Background: The Ministry of health in Oman routinely collects surveillance data for acute flaccid paralysis (AFP) as recommended by the World Health Organization (WHO) as part of polio eradication efforts to detect wild poliovirus infection. We evaluated AFP surveillance system in order to identify any potential components that may require strengthening to reach the eradication goals. Methods A retrospective evaluation of the performance of the AFP surveillance in Oman during 2000-2013.

Results:Cumulatively, 312 AFP cases were reported between 2000-2013. Of these cases, 204 (65%) were among children between 1-5 years of age, 168 (54%) were male, and 300 (96%) were of Oman nationality. None of the AFP cases were confirmed as wild poliomyelitis or polio-compatible. The annualized non-polio AFP detection rate was 3.45 AFP cases per 100,000 population in person ≤15 years of age per year in the study period. The AFP rate increased over the years and maintained above two AFP cases per 100,000 population ≤15 years of age. AFP surveillance and laboratory performance indicators were >80%, thus meeting WHO estimated targets. Nine (82%) of the governorates reported AFP cases.

Conclusion: The national AFP surveillance system in Oman met all of WHO epidemiological and laboratory performance indicators. It is necessary to maintain high quality surveillance nationwide, in order to verify the absence of wild poliovirus circulation in Oman and to be able to identify any imported cases of wild poliovirus.

Keywords

Acute Flaccid Paralysis (AFP); Surveillance; Epidemiology; Polio Eradication; Incidence; Trends; Oman; Eastern Mediterranean Region