Transmission electron micrograph of HIV ... virus particles that have not yet separated from the cell appear as semi-circles. A separated, spherical immature particle is seen at center of the image.

Transmission electron micrograph of HIV-1 virus particles (blue ... spherical particle is a mature form in extracellular space. Image captured at the NIAID Integrated Research Facility in Fort ...

Active host-pathogen interactions take place during infection of human immunodeficiency virus type 1 (HIV-1). Outcomes of these interactions determine the efficiency of viral infection and ...