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This article was originally published by BBC News
Pregnant women are even more at risk of contracting Ebola than others.
The charity Medicines Sans Frontieres says almost all the pregnant women its treated have not survived.
The health-workers treating them also face greater risks so in Sierra Leone the first ever Ebola treatment centre which specialises in caring for pregnant women has opened.
Tulip Mazumdar was given special access to the centre.