Conference abstract

Addressing the last mile challenge for Onchocerciasis elimination: leveraging digitalized supervisor coverage tool for MDA improvement and strengthening Community Drug Distributors (CDD) performance in Mahenge Focus, Tanzania

Pan African Medical Journal - Conference Proceedings. 2024:21(19).29 Apr 2024.
doi: 10.11604/pamj-cp.2024.21.19.2350
Archived on: 29 Apr 2024
Contact the corresponding author
Keywords: Last mile challenge, onchocerciasis elimination, digitalized supervisor coverage tool, improvement
Oral presentation

Addressing the last mile challenge for Onchocerciasis elimination: leveraging digitalized supervisor coverage tool for MDA improvement and strengthening Community Drug Distributors (CDD) performance in Mahenge Focus, Tanzania

Dorica Burengelo1,&, Ambakisye Mhiche1, Evangelina Chihoma2, Casmil Masayi1, Ezekiel Moirana3, Shabbir Lalji1, Julius Masanika1, Clara Jones3

1RTI International, Dar es Salaam, Tanzania, 2United States Agency for International Development, Dar es Salaam, Tanzania, 3The National Neglected Tropical Diseases Control Program, Ministry of Health, Dodoma, Tanzania

&Corresponding author

Introduction: Mahenge focus is one of the eight and the oldest onchocerciasis transmission focus in the country. The focus recorded the highest baseline prevalence in Tanzania, (nodular palpation of 45-95%, 1997). Mass treatment following the Community-Directed Treatment with Ivermectin (CDTI) approach reduced the prevalence to 2.8% (OV16RDT) by July 2022; however, there is evidence of continued transmission despite more than two decades of MDA.

Methods: five villages were selected from each district in the focus based on two criteria: evidence of vector breeding (first line villages) and low coverage in the last MDA. In each village, one hamlet was randomly selected where 20 households were obtained for interviews. ODK software was used for data collection.

Results: good coverage was observed in two SAs, Mofu in Mlimba and Mahenge in Ulanga DCs respectively. Six SAs had inconclusive results from SCT (Chisano, Chita, and Idete in Mlimba DC; Isiaga, Mwaya and Ruaha in Ulanga DC). Inadequate coverage was observed in only one SA (Njage in Mlimba DC). The most common reasons observed for the inadequate coverage were taking other medications, pregnancy for women, alcohol consumption, and not being visited by CDD.

Conclusion: digital real-time monitoring through the SCT enhanced implementation of MDA through targeted mop-up. Despite application of electronic SCT, treatment coverage surveys should be done to validate coverage and put forward corrective actions for future MDAs.