Impact assessment of onchocerciasis through lymphatic filariasis transmission assessment surveys using Ov-16 rapid diagnostic tests in Sierra Leone

Kargbo-Labour, Ibrahim; Bah, Mohamed S.; Melchers, Natalie V. S. Vinkeles; Conteh, Abdulai; Redwood-Sawyerr, Victoria; Stolk, Wilma A.; Paye, Jusufu; Sonnie, Mustapha; Veinoglou, Amy; Koroma, Joseph B.; Hodges, Mary H.; Weaver, Angela M.; Zhang, Yaobi

doi:10.1186/s13071-024-06198-5

Table 1 Onchocerciasis treatment with ivermectin in Sierra Leone between 1990 and 2004^a

From: Impact assessment of onchocerciasis through lymphatic filariasis transmission assessment surveys using Ov-16 rapid diagnostic tests in Sierra Leone

Year	Treatment strategy	Treatment areas	No. of people censused	No. of people treated	Coverage (%)	Data sources
1990	Large-scale treatment by national mobile teams and community-based treatment	Taia, Gbamgbaia River Basins (537 villages)	44,274	31,230	70.5	[20]
1991	Large-scale treatment by national mobile teams and community-based treatment	Taia, Gbamgbaia and Jong River Basins	115,609	77,306	66.9	[21]
1991	Passive treatment by health institutions		–	180,456	–	[21]
1992	Large-scale treatment by national mobile teams and community-based treatment	Taia, Gbamgbaia and Sewa River Basins	381,278	299,787	78.6	[22]
1992	Passive treatment by health institutions		–	37,476	–	[22]
1993	Large-scale treatment by national mobile teams and community-based treatment	Kaba II, Mabo1e II and Moago I River Basins	77,778	57,321	73.7	[23, 54]
1994	Large-scale treatment by national mobile teams and community-based treatment	Six river basins	549,228	396,023	72.1	[24]
1994	Passive treatment by health institutions		–	33,596	–	[24]
1995–1996	Large-scale treatment by national mobile teams and community-based treatment	962 villages	179,508	126,810	70.6	[55]
1996–1997	Large-scale treatment by national mobile teams and community-based treatment	609 villages	113,551	83,626	73.6	[56]
1996–1997	Passive treatment by health institutions		–	10,732	–	[56]
1997–1998	CDTI	Not done	–	–	–	[57]
1997–1998	Passive treatment by health institutions		–	21,891	–	[57]
1999–2000	Data not available					[58]
2001	CDTI	Bo, Moyamba, Pujehun, Kenema (1366 vilalges)	301,847	171,240	56.7	[59]
2002	CDTI	Bo, Moyamba, Pujehun, Bonthe, Kenema (1210 villages)	277,697	176,289	63.5	[60]
2003	CDTI	Kono, Tonkolili, Bombali, Koinadugu, Kambia, Kailahun, Port Loko (5154 villages)	2,269,451	771,590	34.0	[26]
2004	CDTI	Bo, Kenema, Pujehun, Moyamda, Bonthe (1653 villages)	n.a.^b	573,749	n.a.^b

^aTreatment numbers for 1990–2002 were taken from reports available from the WHO online database. The actual treatment numbers may be more than the numbers presented here from some years but could not be found
^bIt was suggested that wrong denominators were used for 2004 treatment data [27]; therefore, the actual number of people censused for 2004 was not available

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ISSN: 1756-3305

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