Re: “When it rains it pours.”
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Yes, and this is another bad virus — a little different from Ebola but not much — mortality rate is a bit lower though.
Both Marburg and Ebola have been around since at least 1976.
From what I remember from reading "The Hot Zone", it may be a very old virus. IIRC the Reston, Virginia facility had a second outbreak after it was decontaminated following the first outbreak. Eventually, the building needed to be demolished, since nobody was willing to place their stock of expensive monkeys at risk. I am not convinced that the virus is as fragile as many experts contend.
The average mortality rate of Marburg is about 80%. The average mortality rate of Ebola (all strains) is about 67%. The average mortality rate of Ebola Zaire (the strain involved in both current outbreaks) is about 79%. The mortality of the current outbreak has been less than 60% and is not included in these calculations.
I calculated these averages using the numbers from this Marburg table and the Ebola table here.
You don't want to come down with Ebola or Marburg. Or any other disease that you might get from a bat, for that matter.