Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Negatively-stained virions (a) and nucleocapsids (b) of Oryctes rhinoceros nudivirus (genus Alphanudivirus). Arrows indicate (a) the membrane from a disrupted virion, (b) tail-like appendages. (c) A virion of Helicoverpa zea nudivirus 2. Bars, 0.2 µm. Micrographs (a) and (b) modified and reprinted from [5] with permission from Elsevier, (c) produced by Jean Adams (USDA-ARS).
