2014 will go down in history as the year Ebola crossed into our borders and threatened the lives of American healthcare workers. The World Health Organization is working this week to figure out ways to restore health care systems shattered by the outbreak across the globe. One Houston doctor who traveled to Sierra Leone to fight the virus said it’s important to stay focused on the fight. “The key to making it stop altogether is controlling the outbreak on the ground,” UTMB's Dr. Thomas Ksiazek said. For some doctors and researchers, a call to action means keeping the human population safe from disease, no matter the cost. “For me, the reward is actually through having participated in these things,” Ksiazek said about treating Ebola victims in West Africa. “And sort of controlling the disease.” Ksaizek, and the countless others who travel abroad in order to contain the virus in West Africa, will be represented by five people on the cover of Time magazine.