Saturday, September 26, 2009
Read the following text.
Malaria is an infection of the blood that is carried from person to person by mosquitoes. The disease has been recognized for thousands of years and once was found almost everywhere except in the most northern areas of the world. Malaria has been wiped out in North America, Western Europe, and Russia. However, it remains a serious problem in much of the tropical and subtropical world.
Malaria is caused by protozoan of the genus Plasmodium. Infection begins with a bite from an infected mosquito. The parasite then travels from the mosquito to the liver, where the parasite begins to reproduce. The parasite leaves the liver and travels to the bloodstream, where it infects the red blood cells. The parasite reproduces in the red blood cells, which destroys the cells and releases more parasites into the bloodstream. If another mosquito bites an infected person, that mosquito can then carry the infection to someone else.
There are 4 species of Plasmodium that infect humans. P vivax is the most common in India and Central and South America but found worldwide. P ovale is rarely found outsides Africa. P malariae is found worldwide but less common than the other forms. P falciparum is most common worldwidw, this is the most life-threatening from of malaria.
With malaria, a person will develop a high fever, which comes and goes every other day or few days. How often a fever returns varies with each species of malaria. Headache, nausea and sweating are also common symptoms of malaria.
1. An infection of the blood that is carried from person to person by mosquitoes
2. Protozoan of the genus Plasmodium
3. P vivax
4. P ovale
5. P malariae
6. P falciparum
7. High fever
Your report should include the following:
• Description of the situation
• Details about the haze
• The effects to health
• Your suggestions on how the situation can be improved
• And other relevant information
Your report should not be less than 200 words