What is malaria?
Malaria is a potentially fatal disease. Especially in countries with tropical climates and developing countries. Malaria plays an important role in the health of the population. Is an infection of red blood cells by a parasite that destroys them.
What causes malaria?
Malaria is caused by infection with the microscopic parasite plasmodium. There are over 150 species of Plasmodium that infect different vertebrates, but only four (P. falciparum, P. vivax, P. ovale and P. malariae) infect humans. The two most common species are P. causing acute falciparum malaria and may lead to death and P. vivax which causes infections and recurrent debilitating but rarely fatal.
The plasmodium is transmitted to humans through bites from Anopheles mosquitoes infected with the parasite.
In humans, the parasites migrate to the liver where they mature and then enter the bloodstream and infect red blood cells.
The parasites multiply within red corpuscles, after 48 to 72 hours, break and infect more red blood cells.
If a mosquito carrying the parasite is not piqa an infected person can infect others. (more…)
‘immune system’
Malaria
Thursday, January 21st, 2010Posted in Diseases and Conditions | No Comments »
Urticaria
Tuesday, January 19th, 2010Rash (also known as urticaria) is presented as an elevation, area red or itchy rash that appears on the skin. Urticaria happens when there is a trigger, normally an allergen (which causes an allergic reaction) and causes the body to release histamine in our body. Histamine causes tiny blood vessels known as capillaries leak fluid, fluid accumulates in the skin and causes a rash.
Hives can be caused by many things, including:
Allergic reaction, for example, to certain foods or bee or wasp stings.
The skin comes into contact with something irritating, such as latex, chemicals, or nettles.
Drugs, usually anti-inflammatory drugs (NSAIDs), used to treat pain and fever, and ACE inhibitors, used to treat high blood pressure.
Physical triggers, such as skin pressure, low temperature, sunlight and water.
However, in about 50% of cases, does not identify any cause.
Urticaria is a common disease that affects one in six people at some point in their lives. It is more likely to affect more children and women.
The rash usually disappears after a few days, but some cases may last longer. It is not contagious.
Hives should not continue for more than six weeks is called acute urticaria.
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urticaria/Posted in Skin Care | No Comments »
