MANKATO, Minn. (AP) - A Minnesota man is helping fight the deadly Ebola outbreak in West Africa.

Since November, Dave Ausdemore has spent much of his time in Monrovia, Liberia. He serves as the Country Director of eHealth Systems Africa, a nongovernmental organization fighting the disease, which has killed more than 11,000 since the first case last spring.

Ausdemore reportedly returned to Mankato last month for just the second time since November. On Friday he and his son will return to Monrovia. His son will volunteer there for three weeks, while Ausdemore could stay for another year.

Ausdemore oversaw more than 200 workers in Liberia's 15 counties at the height of his organization's response. He says he and his co-workers worked 16-hour days.

In May, the World Health Organization declared Liberia Ebola-free.