Marburg has a fatality rate as high as 88%.

Source: https://time.com/6265029/marburg-virus-spreads-tanzania/

On 12 February 2023, one sample was confirmed positive for Marburg virus by real-time polymerase chain reaction (RT-PCR), at the Institute Pasteur in Dakar, Senegal.

Source: https://www.africanews.it/english/disease-outbreak-news-marburg-virus-disease-equatorial-guinea/

The announcement comes a month after Equatorial Guinea confirmed its own outbreak of Marburg, a first for the West African nation.

Source: https://www.forbes.com/sites/roberthart/2023/03/27/what-is-marburg-what-you-need-to-know-about-the-killer-ebola-like-virus-spreading-in-parts-of-africa/

The majority of Marburg virus infections are treated in intensive-care units in hospitals.

Source: https://www.ibtimes.co.uk/first-ever-marburg-virus-disease-outbreak-confirmed-heres-what-we-know-so-far-1712887

The Marburg virus is an infectious disease that has high fatality rates and, according to the World Health Organization (WHO), has epidemic potential.

Source: https://www.legitgov.org/cdc-warns-marburg-virus-after-deadly-africa-outbreak

The updated list includes active respiratory tuberculosis, plague, cholera, anthrax, and hemorrhagic fevers caused by Lassa, Marburg and Ebola viruses.

Source: https://eng.belta.by/society/view/covid-19-off-belarus-list-of-high-risk-diseases-156735-2023/

What is Marburg virus and how does it spread?

Source: https://www.independent.co.uk/news/health/man-suicide-botched-dental-work-pain-b2281872.html