Photo de stock - scanning electron micrograph of ebola virus budding from the surface of a vero cell (african green monkey kidney epithelial cell line. produced by the national institute of allergy and infectious diseases (niaid), under a very-high magnification, this digitally-colorized scanning electron micrograph (sem) depicts a number of filamentous ebola virus particles (red) that had budded from the surface of a vero cell (blue-gray) of the african green monkey kidney epithelial cell line. ebola hemorrhagic fever (ebola hf) is one of numerous viral hemorrhagic fevers. it is a severe, often fatal disease in humans and nonhuman primates (such as monkeys, gorillas, and chimpanzees). ebola hf is caused by infection with a virus of the family filoviridae, genus ebolavirus. when infection occurs, symptoms usually begin abruptly. the first ebolavirus species was discovered in 1976 in what is now the democratic republic of the congo near the ebola river. since then, outbreaks have appeared sporadically.