Basic information about Ebola isn't as clear as it probably could be.
A recent poll by the Harvard School of Public Health, for instance, found that 38 percent of Americans are worried that Ebola will infect them or a family member in the next year, despite assurances from officials that the U.S. will stop Ebola in its tracks.
We've put together a primer on what you need to know. We'll update it as new information develops.
Copyright 2022 NPR. To see more, visit https://www.npr.org.
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A comparison of reproduction numbers, or R0s, for several viruses. R0 is one measure of contagiousness.
Adam Cole
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A CDC poster shows ways Ebola isn't spread.
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Medical workers with the Liberian Red Cross carry the body of a victim of the Ebola virus on Sept. 4, in Banjor, Liberia.
Dominique Faget
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Jeff Hulbert of Annapolis, Md., holds up a sign to stop flights in front of the White House last Friday.
Allison Shelley
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Dallas County Judge Clay Jenkins waits outside a unit at the Ivy Apartments, where Thomas Eric Duncan, the first person to die of Ebola in the U.S., was staying in Dallas.
Tom Pennington
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Health officials use a thermometer to screen passengers at the arrival hall of Murtala Muhammed International Airport in Lagos, Nigeria, on Monday.
Sunday Alamba
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The Dallas apartment where Ebola victim Thomas Eric Duncan stayed when he fell ill remains under quarantine Monday, 12 days after his death.
Chip Somodevilla
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Engineered proteins glow under ultraviolet light on the leaves of N. benthamiana plants, which are being developed by Icon Genetics to produce ingredients for an Ebola treatment called Zmapp.
Sean Gallup
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How big is Africa? This illustration shows how many countries and regions could fit inside "the cradle of humankind."