The World Health Organization is calling the death toll among health care workers in Western Africa "unprecedented."
So far, 120 have died and twice that number have been infected.
These numbers are expecially astounding, considering that, in the three hardest-hit countries, only 1 or 2 doctors are available to treat 100,000 people.
There is also concern about a newly-declared outbreak in the Democratic Republic of Congo.
The government announced it has confirmed 2 cases of ebola, and more are suspected.
Congo's Health Minister says it is a different strain of the disease.
The World Health Organization is doing independent testing to confirm the diagnosis.