The goal is to launch vaccine trials in West Africa by January, said Dr. MariePaule Kieny, WHO's assistant director general for health systems and innovation.
t's not clear when vaccines could be distributed to the masses. That won't be determined until after the testing results come in.
"There is no vaccine that has no side effects at all," Kieny said.
But she said it will be impossible to get sick with Ebola from the vaccines because they do not contain enough of the virus' genetic material.
The initial vaccine tests will be available to volunteers in countries such as Mali, the United States and England, Kieny said.
"It will be open to the general public. It can be you, me," she told reporters Tuesday.
When the testing reaches West Africa, candidates could include relatives of infected Ebola patients, Kieny said.