Differential susceptibility of Onchocerca volvulus microfilaria to ivermectin in two areas of contrasting history of mass drug administration in Cameroon: relevance of microscopy and molecular techniques for the monitoring of skin microfilarial repopulation within six months of direct observed treatment

Table 1 Screened participants positive for O. volvulus Mf in the Bafia HD

Variables	Study populations	Number examined	Number positive	Percentage (%)	P – value (x² test)
Sex	Male	229	73	31.9	0.018
	Female	159	32	20.1
	Total	388	105
Age- group	Children (5–19 years)	76	10	13.2	0.007
	Adults (≥20 years)	312	95	30.4
	Total	388	105	27.1
Communities	Balamba 1	28	7	25.0	0.001
	Balamba 2	57	5	8.8
	Biamo	68	23	33.8
	Boalondo/Botatango	53	24	45.3
	Lable/Nyamsong	88	12	13.6
	Ngomo/Biatsota	94	34	36.2
	Total	388	105	27.1

ISSN: 1471-2334