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Ebola infection of humans linked to population density and vegetation cover

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MEDICAL NEWS TODAY                                             Jan. 22, 2015

Ebola is a "zoonotic" disease: the virus starts out in animal populations - believed to be fruit bats - and then spills over into humans. Now, a new study that investigates landscape features of where spillover occurs suggests human population density and vegetation cover may be important factors.

The researchers examined landscape features of precise geo-locations of Ebola spillover into humans.

The study is the work of two researchers from SUNY Downstate Medical Center in Brooklyn, NY, who write about their findings in the open-access journal PeerJ.

First author Michael G. Walsh, assistant professor of epidemiology and biostatistics in SUNY Downstate's School of Public Health, says they found significant interaction between density of human populations and the extent of green vegetation cover in the parts of Africa that have seen outbreaks of Ebola virus disease (EVD).

However, he also warns that because of the observational nature of the data, the study cannot prove that the specific pattern of interaction between human populations and forested land causes the spillover of Ebola from animal reservoirs into humans. The most it can do is suggest that they may help it along.

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http://www.medicalnewstoday.com/articles/288355.php

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Link to PeerJ study.

The landscape configuration of zoonotic transmission of Ebola virus disease in West and Central Africa: interaction between population density and vegetation cover

https://peerj.com/articles/735/

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