Los Angeles Unified School District Superintendent John Deasy, seen in a photo taken last year, says his resignation Thursday was "by mutual agreement." Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP

Nina Pham, 26, steps off a plane Thursday night at a municipal airport in Frederick, Md. An ambulance was waiting to take her to the National Institutes of Health in Bethesda, Md. Paul J. Richards/AFP/Getty Images hide caption

itoggle caption Paul J. Richards/AFP/Getty Images

An umbrellas is placed near tents set up by pro-democracy protesters in an occupied area near government headquarters in Hong Kong on Thursday. Hong Kong officials have revived an offer for talks with the activists, but also emphasized that Beijing will never agreed to their demand for open elections. Vincent Yu/AP hide caption

itoggle caption Vincent Yu/AP

During a news conference on Sunday, Texas Health Presbyterian Hospital Chief Clinical Officer Dr. Daniel Varga answers questions about a health care worker who now has Ebola after providing care for Thomas Eric Duncan. Varga is expected to testify before a House panel looking into Ebola response. Brandon Wade/AP hide caption

itoggle caption Brandon Wade/AP