Schistosoma haematobium hotspots in south Nyanza, western Kenya: prevalence, distribution and co-endemicity with Schistosoma mansoni and soil-transmitted helminths

Table 1 Prevalence and intensity of infection of schistosomiasis and soil-transmitted helminths among school children in south Nyanza, western Kenya

	Overall prevalence (%)¹	Intensity threshold prevalence, (%)			*Infection intensity*(eggs/10 ml or epg)²
		Mild	Moderate	Heavy
Hematuria	8.3 (7.5-9.2)
Overall parasite infection
S. haematobium	9.3 (8.4-10.2)	86.2	-	13.8	24.1 (18.7-29.6)
S. mansoni	13 (11.9-14.1	63.2	24.2	12.6	156.8 (135.3-178.4)
T. trichiura	2.8 (2.3-3.4)
A lumbricoides	5.4 (4.7-6.3)
Monoinfection
S. haematobium	7.2 (6.4-8)	86.6	-	13.4	24 (17.2-30.7)
S. mansoni	11.4 (10.4-12.5)	62.3	25.1	12.6	159.2 (136.7-181.7)
Coinfection
S. haematobium - S. mansoni	1.3 (0.9-1.6)	78³	29.3⁴	22³	26.6 (16.2-37.0)³
		68.3⁴		2.4⁴	92.8 (63.3-122.3)⁴

¹95% Confidence interval.
²Arithmetic mean infection intensity (values in parenthesis indicate 95% Confidence Interval).
³Values corresponding to S. haematobium infections.
⁴Values corresponding to S. mansoni infections.

ISSN: 1756-3305