Reduction in infection with Plasmodium falciparum one year after the introduction of malaria control interventions on Bioko Island, Equatorial Guinea.
The Bioko Island Malaria Control Project was initiated in 2003 to substantially reduce malaria on the island of Bioko in Equatorial Guinea. The intervention consisted of generalized indoor residual spraying during the first year of the project. Case management and related measures were introduced during the second year. Two large household and parasitemia surveys of children 2 to < 15 years of age were carried out in 2004 and 2005, respectively, to assess the effect of the intervention after the first year. Patient records were collected retrospectively from one district hospital and analyzed for a comparison of pre-intervention and post-intervention periods. Overall mean prevalence of P. falciparum infection reduced from 46% (95% confidence interval [CI] = 40-51%) at baseline in 2004 to 31% (95% CI = 24-40%) in 2005 (P < 0.001). When the 12-month pre-intervention period was compared with the 12-month post-intervention period, there was a modest but statistically significant reduction in the number of malaria cases among hospital patients.
Kleinschmidt
Immo
I
Malaria Research Programme, Medical Research Council of South Africa, Durban, South Africa. immo.kleinschmidt@mrc.ac.za
Sharp
Brian
B
Benavente
Luis E
LE
Schwabe
Chris
C
Torrez
Miguel
M
Kuklinski
Jaime
J
Morris
Natashia
N
Raman
Jaishree
J
Carter
Joseph
J
D000293:Adolescent; D000367:Age Factors; D000818:Animals; D002648:Child; D002675:Child, Preschool; D003625:Data Collection; D016703:Equatorial Guinea / Q000453:epidemiology; D005260:Female; D005843:Geography; D006078:Government Programs / Q000379:methods / Q000592:standards; D006798:Housing; D006801:Humans; D007223:Infant; D016778:Malaria, Falciparum / Q000453:epidemiology* / Q000517:prevention & control*; D009032:Mosquito Control / Q000379:methods; D018512:Parasitemia / Q000453:epidemiology* / Q000517:prevention & control*; D011247:Pregnancy; D015597:Pregnancy Complications, Parasitic / Q000453:epidemiology / Q000517:prevention & control; D015995:Prevalence; D011722:Pyrethrins / Q000008:administration & dosage
D011722:Pyrethrins