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MALARIA SIDE EFFECTS & HOW DOES MALARIA SPREAD

 MALARIA SIDE EFFECTS & HOW DOES MALARIA SPREAD 



Overview

Malaria is a disease caused by a parasite. The parasite is spread to humans through the bites of infected mosquitoes. People who have malaria usually feel very sick with a high fever and shaking chills.


While the disease is uncommon in temperate climates, malaria is still common in tropical and subtropical countries


Symptoms

Signs And Symptoms of Malaria may include:



.Fever

.Chills

.General feeling of discomfort

.Headache

.Nausea and vomiting

.Diarrhea

.Abdominal pain

.Muscle or joint pain

.Fatigue

.Rapid breathing

.Rapid heart rate

.Cough


Some people who have malaria experience cycles of malaria "attacks." An attack usually starts with shivering and chills, followed by a high fever, followed by sweating and a return to normal temperature.


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Causes

Malaria is caused by a single-celled parasite of the genus plasmodium. The parasite is transmitted to humans most commonly through mosquito bites.


Mosquito transmission cycle

Uninfected mosquito. A mosquito becomes infected by feeding on a person who has malaria.

Transmission of Parasite. If this mosquito bites you in the future, it can transmit malaria parasites to you.

In the liver. Once the parasites enter your body, they travel to your liver — where some types can lie dormant for as long as a year.

Into the bloodstream. When the parasites mature, they leave the liver and infect your red blood cells. This is when people typically develop malaria symptoms.


On to the next person. If an uninfected mosquito bites you at this point in the cycle, it will become infected with your malaria parasites and can spread them to the other people it bites.


Other modes of transmission

Because the parasites that cause malaria affect red blood cells, people can also catch malaria from exposure to infected blood, including:


.From mother to unborn child

.Through blood transfusions

.By sharing needles used to inject drugs


Risk factors

The greatest risk factor for developing malaria is to live in or to visit areas where the disease is common. These include the tropical and subtropical regions of:


.Sub-Saharan Africa

.South and Southeast Asia

.Pacific Islands

.Central America and northern South 

.America

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Complications

Malaria can be fatal, particularly when caused by the plasmodium species common in Africa. The World Health Organization estimates that about 94% of all malaria deaths occur in Africa — most commonly in children under the age of 5.


Malaria deaths are usually related to one or more serious complications, including:


Cerebral malaria. If parasite-filled blood cells block small blood vessels to your brain (cerebral malaria), swelling of your brain or brain damage may occur. Cerebral malaria may cause seizures and coma.

Breathing problems. Accumulated fluid in your lungs (pulmonary edema) can make it difficult to breathe.

Organ failure. Malaria can damage the kidneys or liver or cause the spleen to rupture. Any of these conditions can be life-threatening.

Anemia. Malaria may result in not having enough red blood cells for an adequate supply of oxygen to your body's tissues (anemia).

Low blood sugar. Severe forms of malaria can cause low blood sugar (hypoglycemia), as can quinine — a common medication used to combat malaria. Very low blood sugar can



Prevention -

If you live in or are traveling to an area where malaria is common, take steps to avoid mosquito bites. Mosquitoes are most active between dusk and dawn. To protect yourself from mosquito bites, you should:


Cover your skin. Wear pants and long-sleeved shirts. Tuck in your shirt, and tuck pant legs into socks.

Apply insect repellent to skin. Use an insect repellent registered with the Environmental Protection Agency on any exposed skin. These include repellents that contain DEET, picaridin, IR3535, oil of lemon eucalyptus (OLE), para-menthane-3,8-diol (PMD) or 2-undecanone. Do not use a spray directly on your face.

Apply repellent to clothing. Sprays containing permethrin are safe to apply to clothing.

Sleep under a net. Bed nets, particularly those treated with insecticides, such as permethrin, help prevent mosquito bites while you are sleeping.


Preventive medicine

If you'll be Traveling to a location where malaria is common, talk to your doctor a few months ahead of time about whether you should take drugs before, during and after your trip to help protect you from malaria parasites.


In general, the drugs taken to prevent malaria are the same drugs used to treat the disease. What drug you take depends on where and how long you are traveling and your own health.


Vaccine

The World Health Organization has recommended a malaria vaccine for use in children who live in countries with high numbers of malaria cases.


Researchers are continuing to develop and study malaria vaccines to prevent infection.


Diagnosis

To diagnose malaria, your doctor will likely review your medical history and recent travel, conduct a physical exam, and order blood tests. Blood tests can indicate:


1) The presence of the parasite in the blood, to confirm that you have malaria

2( Which type of malaria parasite is causing your symptoms

3( If your infection is caused by a parasite resistant to certain drugs

4) Whether the disease is causing any serious complications


Treatment

Malaria is treated with prescription drugs to kill the parasite. The types of drugs and the length of treatment will vary, depending on:


.Which type of malaria parasite you have


.The severity of your symptoms


.Your age


.Whether you're pregnant


Medications

The most common antimalarial drugs include:


Chloroquine phosphate. Chloroquine is the preferred treatment for any parasite that is sensitive to the drug. But in many parts of the world, parasites are resistant to chloroquine, and the drug is no longer an effective treatment.


Artemisinin-Based combination therapies (ACTs). ACT is a combination of two or more drugs that work against the malaria parasite in different ways. This is usually the preferred treatment for chloroquine-resistant malaria. Examples include artemether-lumefantrine (Coartem) and artesunate-mefloquine.


Other common antimalarial drugs include:


.Atovaquone-proguanil (Malarone)


.Quinine sulfate (Qualaquin) with doxycycline (Oracea, Vibramycin, others)


.Primaquine phosphate

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