A Doctors Without Borders worker carries a child suspected of having Ebola in a treatment center in Liberia on Sunday. (John Moore/Getty Images)

Last week, health officials announced the first case of Ebola diagnosed in the United States. On Wednesday, the patient, Thomas Eric Duncan, died in a Dallas hospital.

Since the first U.S. diagnosis, an American freelance journalist was stricken with Ebola; he was repatriated from Liberia and is now receiving treatment in Nebraska. There have been scares in the Washington area, South Florida and Newark, N.J., as fears of infection worsened.

And a Spanish nurse who was treating an Ebola-stricken priest became infected herself, in the first case of Ebola transmission outside of West Africa.

But as the attention shifted to U.S. concerns and the situation in Europe, the death toll has continued to rise in West Africa, where medical teams are still scrambling to contain the deadly virus.

There are now more than 8,000 confirmed, suspected and probable cases of Ebola in Guinea, Liberia and Sierra Leone, according to World Health Organization figures released Wednesday, hours after Duncan's death in Dallas. Nearly 4,000 deaths have been reported in the region. The situation is especially dire in Sierra Leone, which this month reported a one-day death toll of 121, according to Reuters, and Liberia, where more than 2,000 Ebola deaths have been recorded.

Here's how the epidemic and the response looks in those countries now.


A Liberian nurse picks up disinfected boots at an Ebola treatment facility in Monrovia, Liberia, this month. (Ahmed Jallanzo/EPA)

A child suffering from Ebola receives treatment in Makeni, Sierra Leone. (Tanya Bindra/Associated Press)

A health worker checks the temperature of a woman entering Mali from Guinea on Thursday. (Joe Penney/Reuters)

The ongoing Ebola outbreak is the worst in history. Medical workers are overwhelmed by those seeking care, families struggle with dead and dying relatives, and children have been left orphaned and abandoned.

In Nigeria, the spread of Ebola appears to have been stopped; there have been no new cases in Africa's largest country since the end of August.

But in Sierra Leone, the Guardian reports that the rapid escalation of cases has drawn comparisons to how the virus spread in Liberia, where Duncan was reportedly infected.

"The disease has reached every county of Liberia," Anthony Banbury, head of U.N. Mission for Ebola Emergency Response, told the BBC. "It is clear that the international community has to have a rapid and very strong response to get this disease under control before it wreaks much more massive havoc in these countries and possibly other ones."


A woman lies alongside the road while waiting to enter the Ebola treatment center at the Island Hospital on Oct. 6 on the outskirts of Monrovia, the capital of Liberia. (John Moore/Getty Images)

A health official examines children suffering from the Ebola virus at Makeni Arab Holding Centre in Makeni, Sierra Leone. (Tanya Bindra/Associated Press)

Liberians react as a corpse is collected from a home of a suspected Ebola victim in the Sonuwein community in Monrovia on Oct. 3. (Ahmed Jallanzo/EPA)

People walk in front of a banner warning against the deadly Ebola virus on Oct. 4 in Freetown, capital of Sierra Leone. (Florian Plaucheur/AFP/Getty Images)

Liberian children sit outside their home on the outskirts of Monrovia after the death of their mother from Ebola. (Ahmed Jallanzo/EPA)

A family member is disinfected on Oct. 6 after bringing a sick relative to the Ebola treatment center at the Island Hospital on the outskirts of the Liberian capital of Monrovia. (John Moore/Getty Images)

Siata Johnson, 23, stands weakly with the help of a relative outside the Ebola treatment center at the Island Hospital on Oct. 6 in Liberia. (John Moore/Getty Images)

Relatives pray over Siata Johnson outside the Ebola treatment center at the Island Hospital on Oct. 6 in Liberia. (John Moore/Getty Images)

A soiled surgical mask lies outside the Ebola treatment center at the Island Hospital in Monrovia, Liberia. (John Moore/Getty Images)

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Gen. David Rodriguez, commander of U.S. Africa Command, said at a Pentagon briefing on Tuesday that the U.S. military effort to combat Ebola in West Africa would take "about a year," but that the timeline would depend on the spread of the virus and the scope of international participation. (AP)