High heterogeneity of malaria transmission and a large sub-patent and diverse reservoir of infection in Wusab As Safil district, Republic of Yemen

Table 2 P. falciparum prevalence as measured by RDT, microscopy, PCR and antibodies to either P. falciparum MSP-1 or AMA-1, by cluster

Cluster	Tested	RDT			Pf microscopy			Pf PCR			Pf serology
Cluster	N	+ve	%	95 % CI	+ve	%	95 % CI	+ve	%	95 % CI	+ve	%	95 % CI
1	185	1	0.5	−0.5, 1.6	1	0.5	−0.5, 1.6	4	2.2	−1.5, 5.8	17	9.2	3.2, 15.2
2	216	77	35.6	24.7, 46.6	61	27.8	18.6, 37	78	37.6	27.4, 47.7	121	58.5	49.6, 67.5
3	187	9	4.8	1.6, 8	0	0	0, 0	15	8	3, 13	60	32.1	24.7, 39.5
4	200	88	44	37.1, 50.9	77	38.5	31.8, 45.2	92	46	38.8, 53.2	118	59	51.8, 66.2
5	195	48	24.6	15.6, 33.6	44	22.6	15.1, 30.1	53	27.2	20.4, 34	110	56.4	47.1, 65.8
6	163	1	0.6	−0.6, 1.8	0	0	0, 0	31	19.1	11.9, 26.3	22	13.6	7.2, 20
7	173	9	6	1.5, 10.5	7	4.7	1.1, 8.3	27	18	11, 25	32	17.3	6.4, 28.2
8	180	20	10.9	3.7, 18.1	22	10.3	3.7, 17	40	23	16.2, 29.7	74	42.5	35.1, 50
9	182	3	1.6	−0.1, 3.4	3	1.6	−0.1, 3.4	4	2.2	0.3, 4.1	9	4.9	1.4, 8.5
10	184	15	8.2	3.2, 13.1	13	7.1	3.1, 11	44	23.9	17.5, 30.3	80	43.5	34.5, 52.5
11	178	0	0	0, 0	0	0	0, 0	6	3.5	1.2, 5.8	6	3.5	0.4, 6.7
12	179	10	5.6	1.7, 9.4	8	4.5	0.6, 8.3	33	18.4	11.9, 25	76	42.5	32.9, 52
Total	2220	281	12.7	10.5, 14.8	236	10.5	8.7, 12.3	427	19.6	17.3, 21.9	725	33.0	30.0, 36.0

ISSN: 1475-2875