Immune system image of a single neutrophil (yellow), engulfing anthrax bacteria (orange).
An immune system is a collection of mechanisms within an organism that protects against disease by identifying and killing pathogen s and tumor cells. It detects a wide variety of agents, from virus es to more
Treatment of multiple sclerosis Although there is no known cure for multiple sclerosis (MS), several therapies for multiple sclerosis have proven helpful. Multiple sclerosis is a chronic inflammatory demyelinating disease that affects the central nervous system (CNS).
The most common initial more
Rudolf Vrba
Rudolf 'Rudi' Vrba, born Walter Rosenberg (September 11 , 1924 – March 27 , 2006 ), was a professor of pharmacology at the University of British Columbia . He came to public attention in 1944 when, in April that year, he and a friend, Alfréd Wetzler , became the second and third more
Bacteria
A bacterium (plural: bacteria) is a unicellular microorganism . Typically a few micrometre s in length, individual bacteria have a wide-range of shapes, ranging from sphere s to rods to spirals. Bacteria are ubiquitous in every habitat on Earth , growing in soil, acidic hot springs , more
Convention on Psychotropic Substances
The Convention on Psychotropic Substances is a United Nations treaty designed to control psychoactive drug s such as amphetamine s, barbiturate s, and psychedelics . During the 1960s, drug use increased greatly around the world, especially in Western nations. more