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Evaluation of rodent control to fight Lassa fever based on field data and mathematical modelling

This resource aims to to assess the efficacy of rodent control by performing a 4-year field experiment in rural Upper Guinea, and developing a mathematical model to simulate different control strategies (annual density control, continuous density control, and rodent vaccination).

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Evidence that rodent control strategies ought to be improved to enhance food security and reduce the risk of rodent-borne illnesses within subsistence farming villages in the plague/endemic West Nile region, Uganda

This resource presents a survey of 37 households from 17 subsistence farming villages within the West Nile region of Uganda. This revealed that rodents cause both pre- and post-harvest damage to crops. Evidence of rodent access to stored foods was reported in conjunction with each of the reported storage practices, and the paper suggests that current efforts are inadequate for effectively reducing rodent abundance in homes.

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Case-control study of Mastomys natalensis and humans in Lassa virus-infected households in Sierra Leone

This resource studied Lassa virus infection and antibodies in households where Lassa fever cases occurred and compared these to those in the nearest neighbour houses and "far" houses located across the village. It reports on rodent infection and human anti-body prevalence. 

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Housing equity for health equity: A rights-based approach to the control of Lassa fever in post-war Sierra Leone

This resource focuses on Lassa fever as a matter of human rights, proposing a strategy to improve housing quality, and discusses how housing equity has the potential to improve health equity and ultimately economic productivity in Sierra Leone. The paper is designed to spur discussion and action towards the provision of housing as part of efforts to prevent disease.

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The bioeconomics of controlling an African rodent pest species

This resource presents an ecological population model as a basis for an economic analyses of controlling an African pest rodent, the multimammate rate, which causes major damage in maize production. This study sues data from the village level in Tanzania, and the model incorporates density-dependent and density-independent factors.

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At home with Mastomys and Rattus: Human-rodent interactions and potential for primary transmission of Lassa virus in domestic spaces

In this study housing characteristics and domestic organization were fund to have an impact on the direct and indirect, intentional and unintentional contact with rodents indoors. More research on housing and environmental modification, as well as food storage are important for prevention against LASV transmission.

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Housing factors and transmission of Lassa fever in a rural area of South-South Nigeria

The study compared the housing quality and hygiene in two peri-urban settlements in Irrua Town. The use of buildings for housing and commercial activities was found to be a risk for the transmission of Lassa fever in the houses.

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Rodent control to fight Lassa fever: Evaluation and lessons learned from a 4-year study in Upper Guinea

This paper performed a 4 year intervention based on chemical rodent control, utilizing anticoagulant rodenticides in 3 villages and evaluating the rodent abundance before and after treatment. They found that chemical treatment provides an effective tool to control local rodent populations. Based on these findings and the acceptability of rodent control activities at community level, the authors aim to promote, in coordination with health and agricultural authorities, a more holistic approach, including rodent trapping and poisoning, environmental hygiene, personal hygiene, house repairs and rodent-proof storage.

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Domestic cats and dogs create a landscape of fear for pest rodents around rural homesteads

This paper found that the presence of cats and dogs at the same homestead significantly reduced activity and increased ’giving up densities’ (i.e. increased perception of foraging cost) of pest rodent species. The results suggest that pest rodent activity can be discouraged through the presence of domestic predators. When different types of predator are present together, they likely create a heightened landscape of fear for foraging rodents.

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Poor housing quality increases risk of rodent infestation and Lassa fever in refugee camps of Sierra Leone

To determine risk of Lassa fever in households in Sierra Leonean refugee camps, this paper analysed the spatial relationships between households with a Lassa case and focal locations of potential rodent habitats. Quality and hygiene factors of households were assessed to determine possible risk factors for household rodent infestation and occurrence of Lassa fever.

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