Experts have moved to calm fears of a US outbreak of the deadly Ebola virus as the first victim brought from west Africa is being treated at a special isolation unit in Atlanta, Georgia.
The US Centres for Disease Control and Prevention has received "nasty emails" and at least 100 calls from people saying, "How dare you bring Ebola into the country?" its director Dr Tom Frieden has said.
But infectious disease experts say there is "zero risk" as Atlanta's Emory University Hospital treats critically ill missionary Dr Kent Brantly and a charity worker who was infected in Liberia.
"I hope that our understandable fear of the unfamiliar does not trump our compassion when ill Americans return to the US for care," Dr Frieden added.
As it reaches seven months since the Ebola outbreak started we take a look at the timeline of events leading up to the spread of the virus.
More than 100 British personnel are arriving in Sierra Leone to combat the Ebola outbreak in West Africa. Here's what else the UK is doing.
A man has been filmed helping an Ebola patient onto a plane without wearing any protective equipment.