OJPHI: Vol. 5
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Journal ID (publisher-id): OJPHI
ISSN: 1947-2579
Publisher: University of Illinois at Chicago Library
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©2013 the author(s)
open-access: This is an Open Access article. Authors own copyright of their articles appearing in the Online Journal of Public Health Informatics. Readers may copy articles without permission of the copyright owner(s), as long as the author and OJPHI are acknowledged in the copy and the copy is used for educational, not-for-profit purposes.
Electronic publication date: Day: 4 Month: 4 Year: 2013
collection publication date: Year: 2013
Volume: 5E-location ID: e81
Publisher Id: ojphi-05-81

Malaria Trends in Six Outpatient Sites in Uganda, 2008—2011
Ruth K. Nassali*1
Arthur Mpimbaza1
Stella Kakeeto1
Asadu Sserwanga1
Fred Kizito1
Denis Rubahika2
Melody Miles3
Michelle Chang3
Grant Dorsey4
Moses Kamya1
1Infectious Diseases Research Collaboration, Kampala, Uganda;
2National Malaria Control Program, Kampala, Uganda;
3Centers for Disease Control, Atlanta, GA, USA;
4Univeristy of California, San Francisco, San Francisco, CA, USA
*Ruth K. Nassali, E-mail: ruth.nassali@yahoo.com

Abstract
Objective

To estimate trends in malaria morbidity at six sentinel sites in Uganda.

Introduction

Over the past five years, efforts to control malaria have been intensified in Uganda (1). With the intensification of these efforts, accurate and timely data are needed to monitor impact of the interventions and guide malaria control program planning (2, 3). We present data on trends in malaria burden over four years from six out-patient health facilities located in regions of varying malaria endemicity in Uganda.

Methods

The study utilized data from the on-going malaria sentinel surveillance program involving six level IV outpatient health facilities: Aduku, Nagongera, Walukuba, Kasambya, Kihihi and Kamwezi. Major malaria control interventions between 2008 and 2010 in sub-counties where these sites are located included Indoor residual spraying (IRS) conducted in Aduku; insecticide-treated nets (ITNs) distributed in Nagongera and Kamwezi. There has been no major control intervention(s) in sub-counties where Walukuba, Kasambya and Kihihi are located. Treatment with artemisinin-combination therapies have however been deployed nationally. Patient information; demographics, malaria test results and diagnosis are recorded on a standardized patient record. The test positivity rate (TPR) defined as the number of persons testing positive for malaria divided by the total number of persons tested was calculated by year from 2008 to 2011 for two age categories (< 5 years and > 5 years).

Results

A total of 560,586 patients were seen, of which 25% were <5 years. Over 325,500 patients were suspected to have malaria, with the proportion of these having a confirmatory test done increasing from 62% in 2008 to 98% in 2011. Between 2008 and 2011, the proportion of the <5 years testing positive for malaria significantly decreased from 66% to 34% in Aduku, from 61% to 41% in Nagongera, and from 54% to 24% in Kamwezi. However, significant increases were seen in Kasambya and Kihihi from 41% to 51% and from 28% to 44% respectively. The TPR at Walukuba remained stable (41% to 45%). Similar trends were seen in the > 5 years.

Conclusions

Sentinel site surveillance has been a reliable and timely method/tool for monitoring trends in malaria morbidity thereby informing and guiding the Uganda malaria control program.


Acknowledgments

Acknowledgments to NMCP Team/MOH, CDC/PMI, UMSP Team, Health Facility Staff.


References
1). Yeka A, Gasasira A, Mpimbaza A, Achan J, et al. Malaria in Uganda: challenges to control on the long road to elimination: I. Epidemiology and current control effortsActa Trop. 2012 Mar;121(3):184–95. Epub 2011 Mar 21.
2). Breman JG, Holloway CN. Malaria surveillance countsAm J Trop Med Hyg 2007;77:36–47.
3). Bryce J, Roungou JB, Nguyen-Dinh P, Naimoli JF, Breman JG. Evaluation of national malaria control programmes in AfricaBull World Health Organ 1994;72:371–81.

Article Categories:
  • ISDS 2012 Conference Abstracts

Keywords: Surveillance, Malaria, Trends.




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