Dengue fever is transmitted by mosquitoes who have been infected with the dengue virus. In the Western Hemisphere, the Aedes aegypti is the one mosquito species that transmits the disease. When a mosquito bites a person who has Dengue or Dengue Fever, the insect becomes infected and acts as a carrier of the virus. The disease spreads when mosquito-carriers bite healthy individuals who are now hosts for the virus. The Dengue virus is only spread by mosquitoes; it is not spread directly from person to person.
However, malaria can also be spread through a transfusion of infected blood or by sharing a needle with an infected person. There are four different species of parasites that cause malaria. They are: n the Plasmodium falciparum (which is the most fatal) n P. vivax, n P. malariae, and n P. ovale. When an infected mosquito bites a person, the parasites enter the bloodstream and travel to the liver. They multiply in the liver, and then travel back into the blood, where they continue to grow and multiply so quickly that they clog blood vessels and rupture blood cells.
Angola Among the four types of parasites of malaria, plasmodium falciparum is the deadliest type. Malaria is usually transmitted from person to person by the bite of a female mosquito genus of the protozoan parasite Anopheles that needs blood for its eggs. Those microscopic parasites are transported via bloodstream to liver. Once they reach the liver, they start to damage the liver’s cell and their reproduction begins. The liver after the attack becomes swollen, causing its cell to burst and consequently, it releases the merozoite which is an egg cell, beginning then their life cycle.
Malaria (also called biduoterian fever, blackwater fever, falciparum malaria, plasmodium, Quartan malaria, and tertian malaria) is one of the most infectious and most common diseases in the world. This serious, sometimes-fatal disease is caused by a parasite that is carried by a certain species of mosquito called the Anopheles. It claims more lives every year than any other transmissible disease except tuberculosis. Every year, five hundred million adults and children (around nine percent of the world’s population) contract the disease and of these, one hundred million people die. Children are more susceptible to the disease than adults, and in Africa, where ninety percent of the world’s cases occur and where eighty percent of the cases are treated at home, one in twenty children die of the disease before they reach the age of five.
Alternatively, P. Knowlesi can be lethal. When an infected mosquito bites a person, they get malaria. Other mosquitoes that bite that person can spread the disease, so you can get malaria directly from a parasite-infected mosquito or a mosquito that bit someone who already... ... middle of paper ... ...quine (Aralen), mefloquine (Larium), primaquine, pyrimethamine (Daraprim), and quinine. Malaria: Conclusion This dangerous disease should be recognized as a threat and menace, so the oblivious should become aware of all the deaths caused in a year by malaria. To sum it all up, malaria is caused by parasite-infected mosquitoes, signs of malaria are basically changes in temperature from colds to fevers, it is diagnosed by extinguishable malaria parasites in the blood and treatment is determined by the severity of the disease, the outcome is usually complete recovery and in some cases, death is the only way out, and preventing malaria is all about preventing mosquitoes Again, malaria is a disastrous disease, one you don’t want to get; one that no one wants to get.
P.Ovale, this causes tertian (recurs every second day) malaria in humans. This species is very closely related to both plasmodium falciparum and P.Vivax. P.Ovale has a quite inadequate dispersal. General Life Cycle of the Malaria Parasite: • The female Anopheles mosquito which transmits the malaria parasites feed on the person when the mosquito has pierc... ... middle of paper ... ... to simply stop it from being transported around the body where it will lead to it processing itself to critical stage where it could lead to death, which is the whole reason of why it should be diagnosed and treated by a doctor as soon as possible to eradicate the possibilities of complications and death. Works Cited Carter, Mendis.
Malaria can be transmitted from one person to another by the bite of an Anopheles mosquito, which is infected. Also malaria is vector-borne. Figure 2 life cycle of a malaria parasite The life cycle of a Plasmodium parasite is very complex as shown in figure 2. The infection starts when an infected female Anopheles mosquito bites an individual, inserting Plasmodium parasites, into the bloodstream in the form of sporozoites. Then the sporozoites rapidly pass in... ... middle of paper ... ...e problems with the bed net is that they have to frequently re-treat roughly every 6 months to a year, this is very problematic to sustain.
Malaria is spread when the mosquito picks up the parasites from the blood of an infected human when it feeds. The mosquito will first recieve the malaria parasite from feeding on the blood of a person who may not neccessarily show symptoms of the disease, but has the parasites in their bloodstream. When the mosquito feeds again, these parasites will be passed on to another human being. Symptoms of malaria include fever, shivering, pain in the joints, headache, repeated vomiting, generalized convulsions, and coma. If not treated, the disease, especially that caused by protozoa falciparum, will progress to severe malaria.
The person infected becomes lethargic. Arthralgia and vomiting are other common symptoms of malaria. Because the parasite is invading and killing red blood cells, malaria can res... ... middle of paper ... ...Malaria. Retrieved July 26, 2006, from CDC Web site: http://www.cdc.gov/malaria/faq.htm#symptoms (2005, November 11). Malaria.
Abstract: Malaria, which has killed more people than those killed by all the war and all the plagues combined, is caused by a small protozoan parasite of the genus Plasmodium that resides within cells in the bloodstream to mature and avoid detection. There are four main species of Plasmodium that cause malaria. These species of the parasite infect humans and female anopheline mosquitoes at different stages in their life cycle. When an infected female anopheline mosquito feeds upon the blood of the vertebrate, the parasite is transferred through the saliva, into the body of the vertebrate host. Once in the bloodstream the parasite makes its way to the liver and then infects the cells in the liver and in the bloodstream.