Ebola death toll passes 1,900, says WHO
The World Health Organisation (WHO) says more than 1,900 people have now died in West Africa's Ebola outbreak.
WHO head Margaret Chan says there are 3,500 confirmed or probable cases in Guinea, Sierra Leone and Liberia.
She says the outbreaks are racing ahead of the control efforts in those countries.
The WHO is holding a meeting today to examine the most promising treatments and to discuss how to fast track their testing and production.
The WHO has previously warned that more than 20,000 people could be infected before the outbreak of the virus is brought under control.
Chan describes the outbreak as the largest, most severe and most complex ever seen.
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