The U.S. is now "surging" its response to the deadly Ebola virus in Africa.
Tom Freidman is the director of the centers for disease control.
"We are going to put at least 50 public health experts in the three countries in the next 30 days. Because, actually, we do know how to stop Ebola. It's old-fashioned plain and simple public health: find the patients, make sure they get treated, find their contacts, track them, educate people, do infection control in hospitals. You do those things -- but you have to do them really well - and Ebola goes away."
Meantime, many people in Liberia have expressed their fear of Ebola, demanding government's urgent action to tackle the spread of the deadly virus.
This comes after the government's ban on the sale of bush meat in the country.
Mary Wleh is a bush meat trader in Liberia 's capital city Monrovia.
"They (government) said that we shouldn't sell (bush) meat so we packed them, so we don't have meat. We're scared now to buy meat and the people that used to bring the meat are scared too because they say the meat brings sickness."
Earlier, West African leaders have agreed to take stronger measures to bring the worst outbreak of Ebola under control and prevent it spreading outside the region.
Ebola is said to be introduced into the human population through close contact with the blood, secretions, organs or other bodily fluids of infected animals.
