Emmie de Wit, who usually works in a Biosafety Level 4 Lab, spent time in less secure labs in Liberia during the Ebola outbreak in West Africa. Above, she prepares to test Ebola patient blood samples. Courtesy of NIAID hide caption

toggle caption
Courtesy of NIAID

This electron microscope image provided by researchers shows a section of a Pithovirus particle, dark outline, inside an infected Acanthamoeba castellanii cell. Julia Bartoli, Chantal Abergel/AP hide caption

toggle caption
Julia Bartoli, Chantal Abergel/AP

Plant pathologists sequenced the genome of 19th century potato specimens like this one from London's Kew Gardens herbarium, collected during the height of the Irish famine in 1847. Marco Thines/Senckenberg Gesellschaft für Naturforschung hide caption

toggle caption
Marco Thines/Senckenberg Gesellschaft für Naturforschung