A parasite that feeds on the brain
• The parasite that feeds the brain
The man used to consider himself a king of nature, but even the simplest organism can destroy it in a matter of days. This is no exaggeration: Naegleria fowleri (Naegleria fowleri) sneaks into the mammalian brain, eating him alive. This amoeba totally do not care about space travel and ultramodern medicine - just only care about food.
And the probability to meet amoeba-mozgoedy increases very slowly, but steadily. Scientists see the reason for its spread to global warming. Reaching the freshwater regions where the annual temperature rises, the amoeba was able to adapt to new conditions.
Naegleria fowleri can meet in any freshwater bodies in the world. These amoeba feed on bacteria and infect a person from time to time. Catch a terrible contagion elementary, one small enough inhalation with water drop. Once in the vehicle body negleriya quickly moves to the brain, which is for them a banquet table.
in the mind Attack
Settling comfortably under the skull cap, amoeba begins to absorb brain cells. At the same time it produces a special protein, which contributes to the speedy decay of even healthy cells. Soon part of the brain close to the parasite is completely destroyed. Usually at this stage the person is still in the mind, forced to endure the terrible feeling.
The immune system sees an enemy in the first seconds of the invasion. Unfortunately, evolution has not provided any special detachment of immune cells to fight the brain-eating amoeba that looks pretty fair. Body fights the parasite standard methods: direct to the affected area more immune cells.
The last drop of
The counter-offensive of the immune system Naegleria fowleri only benefit. That is, on the flagellum. In an attempt to destroy the parasite's body gives the order to send to the affected area a huge number of immune cells. These "rescuers" literally bury the remains of a brain, causing tissue inflammation. As a consequence there is a swelling of the brain, from which the affected dies.
The reality of the danger of
Of course, the chance of contracting brain-eating amoeba is negligible. Since 1962, it reported a total of 132 such cases worldwide, and managed to survive only three victims. However, the Indian biologist Abdul Mannan Baig rightly points out that statistics from developing countries, no one took into account - for its complete absence. Most likely, the scientist rights. A recent study remote areas of Pakistan showed that in this country amoeba infects at least 20 people a year.