Lethargy of Central Africa prevails: Cause 60,000 people to die every year
There is such a disease, will let the patient fall into lethargy for a long time, the state that then enter to go into a coma, die silently finally. This product whose imagination burst out when described by literature, this is a kind of true disaster that exists. This is lethargy.
" lethargy " Disease formed by the fact that a kind of parasite which is named the awl worm is infected with, prevail in Central Africa. In the 14th century, the Malian king Mari Jata caught this kind of disease, lethargy dies about 2 years later. This is a earlier lethargy case. Several centuries later, when western colonists expand trade to western Africa, have found such strange disease. People explain to the cause of disease it is very strange too: Someone thinks that is caused by drinking too much, someone thinks too that takes drug excessive and eating the rotten foodly, or mental wound causes. Later, the explorers found one kind of locality by name and adopted flies (Tsetse fly) Insect and connection between the disease,call it " whether fly is ill " .
In 1843, the French doctor David Gruby found a kind of parasite in the blood of the frog, its shape is similar to the spiral opener which holds the bottle plug of wine, it is to rotate to move. Later on the scientists give this small things a name, call " awl worm " (Trypanosoma) . In 1894, the surgeon David Bruce of army of Great Britain isolated a kind of microorganism in the blood of the ox suffering from disease after picked the fly to bite. Soon, he has found the same microorganism from dog, horse that the fly has stung adopted on one's body. Bruce has confirmed that adopts the inner link among fly, livestock's disease and parasite. At that time, lethargy was prevailing in Uganda, British government sent people to Uganda and sought the cause of disease, but scientists generally think this is a kind of bacterium's infective disease. The British government is very unsatisfied with progress investigating, then send Bruce to be responsible for the investigation. In 1903, Bruce confirmed worm resulted in infecting the awl, people demonstrated symptom of lethargy after infecting. This kind of awl worm is named Trypanosoma Brucei after him. Soon, people confirm that adopting flies femaly is the evil backstage manipulator behind the scenes of the spread awl worm.
This quite popular kind of diseases of colony of various countries in Europe. 250,000 people die of lethargy in Uganda, colony of Britain between 1896 and 1906 alone, have exceeded 500,000 in Congo basin death toll. The disaster of disease causes the colonists' extensive concern, doctors are going to Africa to specialize in the research of lethargy constantly. Hereafter, colonize government, adopt various measure control spread of disease, force resident move out of, adopt residence of fly, kill, adopt fly,etc. After 1970, lethargy got effective control.However, in the past few years, in the place year after year of political unstable chaos caused by war of Africa, lethargy has presented the trend of growth. Today, the awl worm is infected with to still threaten African's healthy disease of the first 10, the area infected is often the poorest place of Africa. Nowadays, this disease still threatens 60 million Africans' health, there are about 500,000 new cases every year, cause more than 60,000 deaths. Over 3 million oxen die because of this kind of disease every year. These makes district that is infect enter the vicious circles of disease, poor, famine and death. People have found out about this disease finally in centuries, but can't control this disease very effectively - --Without vaccine, there is no ideal medicine with small, effectual side effect. Those patients may be the poorest person in the whole world, it is very difficult to obtain enough profits from them, so big pharmaceutical factory does not spend great energy researching and developing medicines. Slowly, these patients falling into lethargy have been really forgotten. (blue and green side)
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