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Wednesday 2 April 2014

Review On Ebola hemorrhagic fever

Ebola hemorrhagic fever

Ebola hemorrhagic fever is a severe and often deadly illness that can occur in humans and primates (e.g. monkeys, gorillas).

Ebola hemorrhagic fever has made worldwide news because of its destructive potential.

Causes
Ebola hemorrhagic fever (Ebola fever) is caused by a virus belonging to the family called Filoviridae. Scientists have identified five types of Ebola virus. Four have been reported to cause disease in humans: Ebola-Zaire virus, Ebola-Sudan virus, Ebola-Ivory Coast virus, and Ebola-Bundibugyo. The human disease has so far been limited to parts of Africa
.

The Reston type of Ebola virus has recently been found in the Philippines.

The disease can be passed to humans from infected animals and animal materials. Ebola can also be spread between humans by close contact with infected body fluids or through infected needles in the hospital.

Symptoms


During the incubation period, which can last about 1 week (rarely up to 2 weeks) after infection, symptoms include:

Arthritis
Backache (low-back pain)
Chills
Diarrhea
Fatigue
Fever
Headache
Malaise
Nausea
Sore throat
Vomiting

Late symptoms include:

Bleeding from eyes, ears, and nose
Bleeding from the mouth and rectum (gastrointestinal bleeding)
Eye swelling (conjunctivitis)
Genital swelling (labia and scrotum)
Increased feeling of pain in the skin
Rash over the entire body that often contains blood (hemorrhagic)
Roof of mouth looks red

There may be signs and symptoms of:
Coma
Disseminated intravascular coagulation
Shock

Exams and Tests

Tests used to diagnose Ebola fever include:

CBC
Electrolytes
Tests of how well the blood clots (coagulation studies)
Liver function tests
Tests to show whether someone has been exposed to the Ebola virus (virus-specific antibodies)

Treatment

There is no known cure. Existing medicines that fight viruses (antivirals) do not work well against Ebola virus.

The patient is usually hospitalized and will most likely need intensive care. Supportive measures for shock include medications and fluids given through a vein.

Bleeding problems may require transfusions of platelets or fresh blood.

Outlook (Prognosis)

As many as 90% of patients die from the disease. Patients usually die from low blood pressure (shock) rather than from blood loss.
Possible Complications

Survivors may have unusual problems, such as hair loss and sensory changes.
When to Contact a Medical Professional

Call your health care provider if you have traveled to Africa (or if you know you have been exposed to Ebola fever) and you develop symptoms of the disorder. Early diagnosis and treatment may improve the chances of survival.

Prevention

Avoid areas in which there are epidemics. Wear a gown, gloves, and mask around sick patients. These precautions will greatly decrease the risk of transmission.

Alternative Names
Ebola virus infection; Viral hemorrhagic fever

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