Persistently high estimates of late night, indoor exposure to malaria vectors despite high coverage of insecticide treated nets

Table 1 Summary of data included in historical comparisons

Year	Location	Species	Sampling method	Collection frequency	EIR	Hourly biting	Reference
1985-1988	Asembo	An. gambiae s.l., An. funestus	2 persons per station, one served as bait while the other collected mosquitoes	Weekly for 33 months	Yes	No	[27]
1989-1990	Ahero	An. arabiensis, An. funestus	2 persons per station, one served as bait while the other collected mosquitoes	Twice per month for 12 months	Yes*	Yes	[34]
1989-1990	Miwani	An. gambiae s.l.	2 persons per station, one served as bait while the other collected mosquitoes	Twice per month for 12 months	Yes*	Yes	[34]
2009	Asembo	An. arabiensis	1 person per station, mosquitoes collected from his exposed legs	6 nights per week for 5 weeks during peak transmission	Yes	Yes	[17] & Current
2011	Asembo	An. gambiae s.l., An. gambiae s.s. An. arabiensis An. funestus	1 person per station, mosquitoes collected from his exposed legs	4 nights per week for 6 weeks during peak transmission	Yes	Yes	Current

ISSN: 1756-3305