Table 3.
EIR Studies Tied to Indoor Residual Spray Intervention
| Location/Year Study Done/Reference | Insecticide | Mosquito | Method | EIR | Parasite Rate |
|---|---|---|---|---|---|
| North-east Tanzania 1995-1996 [25] |
[0.03] g lambdacyhalothrin/m2 re-sprayed 7-8 months after initial spray |
An. gambiae and An. funestsus | light traps, window exit traps, pyrethrum spray collection and ELISA | Infectious bites/person/night 1995: Control = 1.04 IRS = 0.98 1996: Control = 0.773 IRS = 0.057 1995 = 5.7% Reduction 1996 = 93% Reduction |
Not reported |
| Northern Guadalcanal, Solomon Islands November 1987-June 1988 [26] |
[2] g DDT/m2 | An. farauti and An. puctulatus | Human landing catch and ELISA | Infectious bites/person/night Control = 2.204 IRS = 0.9675 56% Reduction |
P. falciparum Control = 29% IRS = 46% P. Vivax Control = 12% IRS = 9% P. falciparum = 59% Increase P. vivax = 25% Reduction |
| Garki, Nigeria September 1969-February 1976 [23] |
[2] g propoxur/m2 re-sprayed every 2 months |
An. Gambiae s.l. and An. funestus | Human landing collection, pyrethrum spray collection, exit trap collection, outdoor resting collection and ELISA | Infectious bites/person/wet season (wet season 1972: May 22-Oct. 22 1973: June 18-Nov. 4) Control: Village 1: 1972 = 17 1973 = 21 Village 2: 1972 = 25 1973 = 28 IRS: Village 3: 1972 = 0 1973 = 10 Village 4: 1972 = 3 1973 = 4 1972 = 93% Reduction 1973 = 71.4%Reduction |
P. falciparum Control 1972 = 43.3% 1973 = 47.5% IRS 1972 = 36.8% 1973 = 35.0% P. malariae Control 1972 = 13.0% 1973 = 11.19% IRS 1972 = 13.3% 1973 = 13.3% P. falciparum 1972 = 15% Reduction 1973 = 26% Reduction P. malariae 1972 = 2.3% Increase 1973 = 19% Increase |