Describe one named infectious disease in terms of its: 1) Cause 2) Transmission 3) Host Response 4) Major Symptoms 5) Treatment 6) Prevention 7) Control

Disease: Malaria Cause: 4 species of the protozoan, Plasmodium Transmission: The genus Anopheles mosquitoes ar the hosts that transmit the indisposition to humankind during the split-sucking process. Symptoms: The dissimilar stages in the life cycle of the protozoan relieve oneself the different symptoms of the disease: - When the pathogen first enters the blood, it becomes to the LIVER CELLS, where it hides from the immune system. There, it multiplies rapidly, producing haemorrhoid of cells called merozoites - The merozoites then travel back into the blood, where they infect RED melodic phrase CELLS, again, multiplying asexually producing many cells. - The merozoites burst out of the red blood cells every(prenominal) 48-72 hours, and as they release toxins in this process, this causes the symptoms. - The toxins cause hap attacks of shivering, fever, headaches, nausea, perspiration and lethargy. The destruction of many red blood cells causes anaemia. - troops resolution : At each stage of the parasites life cycle, it produces a different set of antigens (they stimulate the immune response). The host produces antibodies to stir up the pathogens, but the antigens continually change, so the immune response is non effective. The merozoites in the liver escape detection Treatment: Natural shield potful develop, but only very slowly.

Treatment of sufferers includes development anti-malarial drugs such(prenominal) as quinine (effective against parasites in red blood cells), and primaquine phosphate (works in both blood and liver cells). Some strains of plasmodium atomic number 18 res istant however. Prevention: Protective cloth! ing, insect repellent, mosquito nets. Control: Aims to obtain incidence of disease to a minimum in population. Drugs to repose vector, and parasite. Destroying vectors habitat. Vaccines against plasmodium. Genetic engineering of mosquitoes to resist parasite. If you want to get a full essay, put up it on our website: OrderCustomPaper.com

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