Ebola Virus-Carrying Animals in Africa Potentially More Widespread Than Assumed
A new study suggests that the habitats of bat species capable of transmitting Ebola virus in Africa are more extensive than previously believed. The findings aim to improve predictions and preventative measures.
Frankfurt am Main. Researchers have, for the first time, modeled the potential habitats of bat species believed to carry the Ebola virus in Africa. According to a study published by the Senckenberg Centre for Human Evolution and Palaeoenvironment and Goethe University, the distribution range of these species is larger than previously assumed. The results were recently published in the journal Scientific Reports.
The Ebola virus is considered one of the world's most dangerous pathogens, with the Zaire ebolavirus being a particularly lethal strain, potentially causing up to 88 percent mortality. The virus is thought to be primarily transmitted by various species of fruit bats and other bats. Understanding the location of these reservoir hosts is crucial for predicting and controlling outbreaks.
The research analyzed the ecological niche requirements and climatic conditions for nine different species of fruit bats and bats across Africa. The modeling indicated that suitable habitats exist in a broad belt extending from West Africa to East Africa, encompassing large parts of Central Africa. Some species may potentially be found even in the eastern parts of Southern Africa.
In a subsequent step, the modeled habitats were compared with existing distribution maps and data from past Ebola outbreaks. Researchers found that the potential habitats for the reservoir hosts of the Zaire ebolavirus are larger than the known distribution areas. This could imply that these areas have not yet been fully colonized by the species, or, more concerningly, that research has underestimated the actual distribution of the virus carriers.
The study's findings can aid in better monitoring diseases in the identified areas and improve public information regarding potential risks. The researchers also emphasize that zoonotic diseases (diseases transmitted from animals to humans), like Ebola, are likely to increase in frequency due to increased human contact with wildlife and globalization.