The US has announced that delegates from affected countries attending a US-Africa conference in Washington next week would be screened.
This order was given by US President Barack Obama according to a BBC news report.
“Folks who are coming from these countries that have even a marginal risk, or an infinitesimal risk of having been exposed in some fashion, we’re making sure we’re doing screening,” he said.
Meanwhile, World Health Organisation (WHO) head, Margaret Chan has said that the Ebola outbreak in West Africa is spreading faster than efforts to control it.
She told a summit of regional leaders that failure to contain Ebola could be “catastrophic” in terms of lives lost.
She, however, said the virus, which has claimed 728 lives in Guinea, Liberia and Sierra Leone since February, could be stopped if well managed.
Ebola kills up to 90% of those infected.
It spreads by contact with infected blood, bodily fluids, organs – or contaminated environments. Patients have a better chance of survival if they receive early treatment.
Initial flu-like symptoms can lead to external haemorrhaging from the eyes and gums, and internal bleeding that can lead to organ failure.
A US relief agency is repatriating two of its American staff who have contracted the virus in Liberia.
A flight carrying the first of the patients – Dr Kent Brantly – landed at and US Air Force base in Georgia at about 16:00 GMT.
Hundreds of US Peace Corps volunteers have already been evacuated from the West African countries.