Effect of community‐wide use of insecticide‐treated nets for 3–4 years on malarial morbidity in Tanzania

@article{Maxwell2002EffectOC,
  title={Effect of community‐wide use of insecticide‐treated nets for 3–4 years on malarial morbidity in Tanzania},
  author={Caroline A Maxwell and Ernest Msuya and M Sudi and Kato Jonas Njunwa and Ilona A Carneiro and Christopher F. Curtis},
  journal={Tropical Medicine \& International Health},
  year={2002},
  volume={7}
}
Objectives  To investigate (1) benefits due to personal protection of individual net users vs. mass killing of mosquitoes within villages as a result of widespread net usage; (2) sustainability over several years of benefits against malarial morbidity of insecticide‐treated nets; (3) distribution of the benefits in different age groups of children and (4) whether, as a result of fading immunity, older age groups ‘paid for’ the benefits which they had enjoyed when younger. 
Community-wide effects of permethrin-treated bed nets on child mortality and malaria morbidity in western Kenya.
TLDR
In areas with intense malaria transmission with high ITN coverage, the primary effect of insecticide-treated nets is via area-wide effects on the mosquito population and not, as commonly supposed, by simple imposition of a physical barrier protecting individuals from biting. Expand
Long‐term effects of malaria prevention with insecticide‐treated mosquito nets on morbidity and mortality in African children: randomised controlled trial
TLDR
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Abstract.  Insecticide‐treated nets (ITNs) impregnated with pyrethroid insecticides have become one of the most promising interventions to prevent malaria in highly endemic areas. Despite the largeExpand
Effect of sustained insecticide-treated bed net use on all-cause child mortality in an area of intense perennial malaria transmission in western Kenya.
TLDR
It is found that sustained ITN use increased the risk of mortality in older children in this area of intense perennial malaria transmission, although it is not clear whether this increased the likelihood of death among infants 1-11 months old. Expand
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TLDR
The data from Tanzania do not support the idea that vector control (without vector eradication) could, in the long run, make the situation worse by preventing the normal build-up of immunity, and suggest that organised free provision of treated nets, comparable to a house spraying programme, is likely to be more cost-effective. Expand
The use of insecticide treated nets by age: implications for universal coverage in Africa
TLDR
In malaria-endemic Africa, school-aged children are the least protected with ITNs but represent the greatest reservoir of infections and school-delivery of ITNs should be considered as an approach to reach universal ITNs coverage and improve the likelihood of impacting upon parasite transmission. Expand
Sustained use of insecticide-treated curtains is not associated with greater circulation of drug-resistant malaria parasites, or with higher risk of treatment failure among children with uncomplicated malaria in Burkina Faso.
TLDR
In this setting, ITC use was not associated with increased circulation of parasites resistant to standard antimalarial drugs, or with a greater risk of treatment failure among children less than 5 years of age. Expand
Impact of promoting longer-lasting insecticide treatment of bed nets upon malaria transmission in a rural Tanzanian setting with pre-existing high coverage of untreated nets
TLDR
Insecticide treatment of nets reduced the intensity of malaria transmission in addition to that achieved by the untreated nets alone, leading to a shift in the sibling species composition of the A. gambiae complex. Expand
Effect of insecticide-treated bed nets on visceral leishmaniasis incidence in Bangladesh. A retrospective cohort analysis
TLDR
VL incidence rate was significantly lower in the ITN intervention cohort compared to control in Bangladesh, and ITNs should be considered for integrated vector control during the maintenance phase of the VL elimination programme. Expand
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References

SHOWING 1-10 OF 14 REFERENCES
A comparison of use of a pyrethroid either for house spraying or for bednet treatment against malaria vectors
TLDR
In an intensely malarious area in north‐east Tanzania, microencapsulated lambdacyhalothrin was used in four villages for treatment of bednets and in another four villages the same insecticide was used for house spraying, concluding that the former intervention would work out cheaper and nets were actively demanded by the villagers, whereas spraying was only passively assented to. Expand
Comparison of bednets impregnated with different pyrethroids for their impact on mosquitoes and on re-infection with malaria after clearance of pre-existing infections with chlorproguanil-dapsone.
TLDR
Comparisons of bednets treated either with alphacypermethrin or lambdacyhalothrin showed similar effectiveness by various entomological criteria, and the treated nets were much more effective than untreated nets. Expand
Effect of large-scale social marketing of insecticide-treated nets on child survival in rural Tanzania
TLDR
The modest average coverage achieved by 1999 in the two districts suggests that insecticide-treated nets prevented 1 in 20 child deaths at that time, suggesting great potential for effective malaria control in rural African settings. Expand
Trial of pyrethroid impregnated bednets in an area of Tanzania holoendemic for malaria. Part 2. Effects on the malaria vector population.
TLDR
The net introductions caused sharp declines in the number of mosquitoes resting indoors, but the evidence was inconclusive regarding diversion to outdoor resting, animal biting, earlier biting or outdoor biting. Expand
Insecticide-treated bed nets and curtains for preventing malaria.
  • C. Lengeler
  • Medicine
  • The Cochrane database of systematic reviews
  • 2004
TLDR
ITNs are highly effective in reducing childhood mortality and morbidity from malaria, but universal deployment will require major financial, technical, and operational inputs. Expand
Insecticide-Treated Bed Nets Reduce Plasma Antibody Levels and Limit the Repertoire of Antibodies to Plasmodium falciparumVariant Surface Antigens
TLDR
It is found that the children using ITN had significantly lower VSA antibody levels and recognized a smaller proportion of the VSA expressed by the tested parasite isolates than children not use ITN. Expand
Insecticide-treated bednets and curtains for preventing malaria.
  • C. Lengeler
  • Medicine
  • The Cochrane database of systematic reviews
  • 2000
TLDR
Insecticide-treated nets appear to be effective in reducing childhood mortality and morbidity from malaria, and widespread access to insecticide- treated nets will require major financial, technical and operational inputs. Expand
Malaria and anaemia at different altitudes in the Muheza district of Tanzania: childhood morbidity in relation to level of exposure to infection.
TLDR
Overall, the present findings indicate that, for the populations studied, an artificial reduction in EIR would be beneficial, even in the long term, with regard to the chronic effects of malaria. Expand
Malaria and anaemia at different altitudes in the Muheza district of Tanzania: childhood morbidity in relation to level of exposure to infection.
TLDR
Overall, the present findings indicate that, for the populations studied, an artificial reduction in EIR would be beneficial, even in the long term, with regard to the chronic effects of malaria. Expand
Combating malaria morbidity and mortality by reducing transmission.
TLDR
Epidemiological data and an analysis of the relationship between transmission, morbidity and mortality from malaria suggest that any intervention aiming to reduce transmission will not reduce the burden of malaria in the majority of epidemiological contexts observed in tropical Africa. Expand
...
1
2
...