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Lassa Fever: a rodent-human interaction

This resource examines the sites of interactions between humans and the multimammate mouse, Mastomys natalensis. It presents findings such as new arenaviruses in other African rodents and in snakes, that  argue preferably toward the host-switching concept. The recent emergence in Sierra Leone, the absence of virus positive Mastomys between the two endemic zones and poor virus diversity in the Mano River area also point in the direction of a unique import of Lassa virus from Nigeria to Sierra Leone during the 19th century. This resource also discusses the hypothesis of human displacements through the Atlantic slave trade and its abolition in 1807.

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Diversity and dynamics in a community of small mammals in coastal Guinea, West Africa

This resource investigated three villages in high endemic zones of Lassa fever in Guinea and presents the biodeiversity of the small mammal community identified through standardized trapping in houses, cultivations and forest.

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Forecasting rodent outbreaks in Africa: an ecological basis for Mastomys control in Tanzania

This study collected rainfall data preceding historical outbreaks of Mastomys rats in East Africa in order to test the hypothesis that such outbreaks occur after long dry periods. It found that rodent outbreaks were generally not preceded by long dry period and the population dynamics of Mastomys natalensis rats in Tanzania are significantly affected by the distribution of rainfall during the rainy season.

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Ebola hemorrhagic fever information packet. U.S. Department of Health and Human Services: Special pathogens branch

This information packet was created by the U.S Department of Health and Human Services to provide key, succinct information about Ebola hemorrhagic fever.

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Nigeria Centre for Disease Control (NCDC): Standard operating procedures for Lassa fever case management

This resource describes the standard operating procedures for Lassa fever case management as outlined by the Nigeria Centre for Disease Control.

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World Health Organisation: Lassa fever in Sierra Leone

This is an update on Lassa fever in Sierra Leone from the 14th June 1996. 

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Use of protective gear and the occurrence of occupational Marburg hemorrhagic fever in health workers from Watsa health zone, Democratic Republic of the Congo

This paper shows how health workers used PPE in an outbreak of Marburg Virus in DRC.  The findings show that HWs protected themselves better during invasive procedures (injections, venepuncture, and surgery) than during noninvasive procedures, but the overall level of protection in the hospital remained insufficient, particularly outside of isolation wards. The reasons for inconsistent use of protective gear included insufficient availability of the gear, adherence to non-biomedical explanatory models of the origin of disease, and peer bonding with sick colleagues.

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Fluctuation of abundance and Lassa virus prevalence in Mastomys Natalensis in Guinea, West Africa

This study investigates the link between the ecology of the M. Natalensis and the incidence of Lassa fever in human cases in Guinea. They found that the risk for Lassa virus transmission was present in both rainy and dry season; however the risk increased in the dry season because of the possibility of encountering rodent excreta in the houses.

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Movement patterns of small rodents in Lassa fever-endemic villages in Guinea

The authors investigate in this study the spatial behaviour of M. Natalensis in Upper Guinea. They use to experiments: capture-mark-recapture studies and Rhodamine B. Their findings showed that M.Natalensis moves between houses and proximate fields. This is an important information for rodent control activities that need to be extended from indoors to fields.

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U.S. Centre for Disease Control (CDC): Lassa fever

Further information from the U.S. CDC in both English and French about the transmission, prevention, diagnosis and treatment of Lassa fever.

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