Erik S. Foster* , Kimberly A. Signs*, David R. Marks†, Hema Kapoor*1, Margaret Casey*, Mary Grace Stobierski*, and Edward D Walker‡
Author affiliations: *Michigan Department of Community Health, Lansing, Michigan, USA; †United States Department of Agriculture, Okemos, Michigan, USA; ‡Michigan State University, East Lansing, Michigan, USA
Figure. Methylamine tungstate negative-stain electron micrograph of arenavirus isolated from mouse spleen homogenate cultures that tested positive by immunofluorescence assay for lymphocytic choriomeningitis virus infection. Viral envelope spikes and projections are visible, and virion inclusions show a sandy appearance, indicating Arenaviridae.
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