Ebola, Malaria, Dengue, all present with similar initial symptoms. Better ‘safe’ than sorry.
True enough when you lack the knowledge, skills and lab equipment.
Liberia? Never had any tools. Since 1980, they have been in turmoil, culminating in Charlie Taylor and his rebel child looters who destroyed and stole anything of value. They never had an opportunity to build the necessary infrastructure to ward off a natural disaster like this.