Urogenital schistosomiasis transmission on Unguja Island, Zanzibar: characterisation of persistent hot-spots Author Pennance, Tom Author Person, Bobbie Author Muhsin, Mtumweni Ali Author Khamis, Alipo Naim Author Muhsin, Juma Author Khamis, Iddi Simba Author Mohammed, Khalfan Abdallah Author Kabole, Fatma Author Rollinson, David Author Knopp, Stefanie text Parasites & Vectors 2016 646 2016-12-16 9 1 1 13 http://dx.doi.org/10.1186/s13071-016-1847-0 journal article 298612 10.1186/s13071-016-1847-0 a77be152-90d4-462b-9429-9366a5c6db61 1756-3305 PMC5162088 27986092 11552323

Table 1 Prevalence of S. haematobium in schoolchildren in persistent hot-spot and low-prevalence shehias in Unguja

	Population size (2014)a	2012 (1st year students) n / N b %c		2012 (9 – 12 year-old students) n / N %		2013 (9 – 12 year-old students) n / N %		2014 (9 – 12 year-old students) n / N %
a Shehia population sizes were estimated by multiplying the population size recorded in the 2012 Population and Housing census [29] by the annual growth rate (2.8 %) b N = number of children sampled; n = number of children infected c % = percentage of children infected with haematobium
Persistent hot-spot shehias
Bandamaji	1273	5/44	11.4	16/94	17.0	24/89	27.0	32/117	27.4
Kinyasni	3302	24/100	24.0	21/105	20.0	20/108	18.5	37/112	33.0
Chaani	3666	8/77	10.4	6/131	4.6	35/113	31.0	12/119	10.1
Koani	3083	15/102	14.7	15/94	16.0	41/109	37.6	27/111	24.3
Kitope	2526	24/96	25.0	12/89	13.5	9/111	8.1	16/112	14.3
Low-prevalence shehias
Dole	3015	0/36	0.0	0/49	0.0	1/58	1.7	0/62	0.0
Mcwajuni	4792	1/97	1.0	0/118	0.0	2/115	1.7	1/111	0.9