Virus, the public enemy number 1 It does not measure more than 30 mm of milionésimos. Cause flu,, measles, paralysis, smallpox,
AIDS, and so on. Do not breathe or feeds, or produce anything, but is able to multiply themselves. To do so, takes up the mechanisms of the cells where hosts, then the sacrifices. They are known about 1000 species of virus, responsible for 60% of the diseases in animals and plants. At each step, belonged to the presence of virus which is not suspected. We found one in spinal fluid of 17 of the 50 schizophrenic examined.
Antibodies are the body''s a threat against foreign agents, are remotely as missiles. Viróticas diseases in general remained a mystery until the invention of the electron microscope in the decade to 1940. The equipment can view the virus, which in Latin means poison, which was isolated and photographed for the first time in the 1950. Many antibodies live and die without ingloriamente find the antigen for which it was made and lock him a battle of life or death. The vaccine is composed of always bouncing or attenuated virus, whose job is to draw the attention of the antibody, which awakened fight with the wrong virus. When unprepared, the cell receives the virus amicably, without realizing that this is a
strange full of bad intentions. The score betrays the host, corresponding to the nucleus, a kind of brain of the cell and it takes the commands. The cell will produce more and more compulsively virus, until the very full, it erupts, proliferando more viruses, that invade neighbouring cells. In that have RNA are called retroviruses, where an enzyme located within an envelope of the virus has to turn the RNA into DNA, because this is the only acid able to enter the nucleus. Drugs such as AZT seek hamper the life of the AIDS retrovirus, eliminating this enzyme. The body, to feel the presence strange, sends white blood cells, called macrophages that engolem the infected cell. The existing T cells in the blood start to produce the antibodies tailor who kill or neutralize the virus. The production of these takes 3 to 7 days, the AIDS virus attacks the cells just T. This happening, it opens up space for a number of opportunistic infections. They do not appear if the T cells operate normally. The influenza virus is one of the mutants, losing only to that of AIDS, where each generation not even lasts one month.