Two concurrent outbreaks of the Marburg virus, a close cousin of Ebola that can kill as many as 90 percent of the people it infects, are raising critical questions about the behaviour of this mysterious bat-borne pathogen and global efforts to prepare for potential pandemics.
Marburg causes high fever, vomiting, diarrhoea and bleeding from orifices. It spreads between people via direct contact with the blood or other bodily fluids of infected people and with surfaces and materials such as clothing contaminated with these fluids.
One of the two outbreaks, in Tanzania in East Africa, seems to have been brought under control, with just two people left in quarantine. But in the other, in Equatorial Guinea on the west coast, spread of the virus is ongoing, and the World Health Organization (WHO) said last week that the country was not being transparent in reporting cases.
The WHO said both outbreaks pose regional risks: Equatorial Guinea has porous borders with Cameroon and Gabon, and so far the cases have appeared in geographically diffuse parts of the country. In Tanzania, the Kagera region has busy borders with Uganda, Rwanda and Burundi.
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New York Times, 5 April 2023
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