The HI-Virus (HIV)

HIV is the causative agent of AIDS (Acquired Immunodeficiency Syndrome). The Human Immunodeficiency Virus (HIV) is a retrovirus. Retroviruses contain ribonucleic acid (RNA) in an enveloping protein capsule. RNA is a carrier of genetic information, which differs from DNA by certain structural features. In cells, DNA is usually present as a double strand, while RNA … The HI-Virus (HIV)

White blood cells

The blood consists of a liquid part, the blood plasma, and solid parts, the blood cells. There are three large groups of cells in the blood: each of them has specific characteristics and fulfils very important tasks for our body and our survival. Leukocytes have an essential function in the human body’s immune defense, with … White blood cells