Diseases come and go in Africa, but China's help continues, with such efforts as the public health center it launched in Sierra Leone during West Africa's Ebola crisis in 2014.

Although Ebola has faded, the China-built public health center, the only one in the country so far, is being made permanent to support local epidemic control, a senior health official told China Daily.

Wang Yu, head of the Chinese Center for Disease Control and Prevention, said five Chinese CDC specialists now work in the facility in Freetown, the capital of Sierra Leone.