False-colour transmission electron micrograph (TEM) of a single HIV-2 virus,the cause of AIDS. Here,the protein coat of the virus (green) has small surface spikes; central (orange) is the nucleoid which contains the viral RNA genetic material. HIV-2 (human immunodeficiency virus type 2) is more closely related to the simian immuno- deficiency virus (SIV) found in monkeys,than is HIV-1. However,both HIV viruses affect T-lympho- cytes (white blood cells) of the human immune system. This undermines the body's natural defence and patients with AIDS fall prey to opportunistic infections. Magnification: x74,000 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CNRI |
Taille de l’image : | 3767 px × 4736 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |