Risk factors for occurrence and abundance of Aedes aegypti and Aedes bromeliae at hotel compounds in Zanzibar

Parasites & Vectors

Table 2 Composition and relative productivity of larval habitats found positive for Aedes mosquitos at hotel compound on Zanzibar Island

Season	Type of container	Number of containers		Stegomyia larva index			Aedes abundance
Season	Type of container	Inspected (%)	Positive (%)	CI	PC	PPC	Aedes larva	Aedes pupa	Ae. aegypti	Ae. bromeliae	Other Aedes
Rainy	Plastic container	571 (70.1)	372 (69.9)	0.46	0.70	2.88	8551	1644	8319	1803	73
	Coconut shell	56 (6.9)	38 (7.1)	0.05	0.07	5.38	1260	301	1497	64	0
	Used tyre	30 (3.7)	24 (4.5)	0.03	0.05	3.90	665	117	772	10	0
	Steel container	33 (4.1)	25 (4.7)	0.03	0.05	5.42	547	179	669	57	0
	Ceramic pot/flowerpot	19 (2.3)	17 (3.2)	0.02	0.03	2.42	220	46	235	30	1
	Glass container	23 (2.8)	13 (2.4)	0.02	0.02	0.35	191	8	165	34	0
	Tree hole	5 (0.6)	4 (0.8)	0.00	0.01	2.60	72	13	84	1	0
	Concrete tank	31 (3.8)	14 (2.6)	0.02	0.03	0.00	50	0	50	0	0
	Aluminium foil container	5 (0.6)	2 (0.4)	0.002	0.004	0.00	62	0	35	23	4
	Mollusc shell	5 (0.6)	4 (0.8)	0.005	0.01	0.80	22	4	23	3	0
	Other	36 (4.4)	19 (3.6)	0.02	0.04	1.19	182	43	193	32	0
Dry	Plastic container	455 (69.8)	165 (71.4)	0.25	0.51	1.80	3580	819	3303	935	161
	Coconut shell	21 (3.2)	8 (3.5)	0.01	0.02	0.24	15	5	20	0	0
	Used tyre	10 (1.5)	4 (1.7)	0.01	0.01	5.10	143	51	194	0	0
	Steel container	31 (4.8)	10 (4.3)	0.02	0.03	0.87	183	27	143	46	21
	Ceramic pot/flowerpot	12 (1.8)	4 (1.7)	0.01	0.01	0.08	14	1	14	1	0
	Glass container	23 (3.5)	1 (0.4)	0.002	0.00	0.00	15	0	0	0	15
	Tree hole	10 (1.5)	5 (2.2)	0.01	0.02	0.00	54	0	45	1	8
	Concrete tank	48 (7.4)	22 (9.5)	0.03	0.07	0.44	54	21	75	0	0
	Fibreglass container	4 (0.6)	3 (1.3)	0.005	0.01	0.25	87	1	88	0	0
	Aluminium foil container	1 (0.2)	1 (0.4)	0.002	0.003	10.00	9	10	19	0	0
	Mollusc shell	2 (0.3)
	Other	35 (5.4)	8 (3.5)	0.01		1.60	211	56	264	3	0

CI container index, PC proportion of positive containers, PPC pupae per container

ISSN: 1756-3305