Indians standing in a line outside a hospital wear masks as a precautionary measure against the Nipah virus at the Government Medical College hospital in Kozhikode, in the southern Indian state of Kerala, on Monday.
Pig farm workers push live pigs into a large grave in Nipah in 1999. To stop the outbreak, the Malaysian government culled almost 1 million pigs, nearly destroying the country's pork industry.
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