Women participate in a breast cancer fund-raising in Denver in 2011. Despite decades of awareness campaigns, the survival rate for women with metastatic breast cancer hasn't improved. Helen H. Richardson/Denver Post/AP hide caption

itoggle caption Helen H. Richardson/Denver Post/AP

Nurse Kaci Hickox and her boyfriend, Ted Wilbur, take delivery of a pizza at their home in Fort Kent, Maine, on Thursday. A judge has ruled that the state cannot compel Hickox to remain in isolation if she's not showing signs of Ebola infection. Robert F. Bukaty/AP hide caption

itoggle caption Robert F. Bukaty/AP

Stringy particles of Ebola virus (blue) bud from a chronically infected cell (yellow-green) in this colorized, scanning electron micrograph. NIAID/Science Source hide caption

itoggle caption NIAID/Science Source

Dr. Curtis Chan, a dentist in Del Mar, Calif., loads up a truck with 5,456 pounds of candy to deliver to Operation Gratitude during the Halloween Candy Buyback on Nov. 8 last year. Chan personally collected 3,542 pounds of candy from patients. Courtesy of Curtis Chan hide caption

itoggle caption Courtesy of Curtis Chan

Low-dose pot-infused cookies, called the Rookie Cookie, sit on the packaging table Sept. 26 at The Growing Kitchen in Boulder, Colo. The state legalized recreational pot use last year. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP

Don't look for leading Ebola researchers at the Sheraton New Orleans. Louisiana health officials told doctors and scientists who have been in West Africa not to come to a medical meeting in town. Prayitno/Flickr hide caption

itoggle caption Prayitno/Flickr

Dallas-area resident James Faulk turned his yard into an Ebola treatment center for Halloween. But he has a serious side: His Twitter account raises funds for Doctors Without Borders, a group active in the fight against the virus. Tom Pennington/Getty Images hide caption

itoggle caption Tom Pennington/Getty Images

Domitilia, 57, is a diabetic patient in the Dominican Republic who contracted tuberculosis. She's now cured of TB after two years of treatment. Javier Galeano/The Union hide caption

itoggle caption Javier Galeano/The Union

Mumadou Traore says the Ivory Coast's French bureaucracy is a "blessing" when it comes to Ebola. Gregory Warner/NPR hide caption

itoggle caption Gregory Warner/NPR