Trends in Performance of the National Measles Case-Based Surveillance System, Ministry of Health and Child Welfare, Zimbabwe (1999 - 2008)

摘要: BACKGROUND: Since adoption of the measles case-based surveillance system in Zimbabwe 1998, data has been routinely collected at all levels health delivery and sent to national level with little or no documented evidence use identify risky populations, monitor impact interventions measure progress towards achieving elimination. We analysed this determine trends (NMCBSS). METHODS: A retrospective record review NMCBSS dataset for period 1999 –2008 was conducted, assessing proportions investigated cases; timeliness nature specimens received laboratory; feedback serology results, proportion cases confirmed as annualized rates investigation. Comparisons WHO performance indicators were done. The secondary analysis done Excel Epi-Info statistical software. RESULTS: Cumulatively 4994 suspected reported between 2008. Reported declined from 24, 5% 5.9% respectively 2000 3.9% 1.0% Proportion blood reaching laboratory timely increased 83% 65% 1999, 100% 82% arriving good condition improved 2004 94% 2008 while results 4% Sensitivity however weakening, declining 9.04 per 100 000 population year 1.58 cases/100 000/year CONCLUSION: quality, investigation, but its sensitivity mainly due reduced capacity detect confirm cases. recommend training staff on active more support supervisory visits strengthen EPI surveillance.