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A highly anticipated test of an experimental Ebola vaccine will begin next week at the National Institutes of Health, amid mounting anxiety about the spread of the deadly virus in West Africa, CNN reported.

After an expedited review by the U.S. Food and Drug Administration, researchers were given the green light to begin what's called a human safety trial, said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases.

It will be the first test of this type of Ebola vaccine in humans.

The experimental vaccine, developed by the pharmaceutical company GlaxoSmithKline and the NIAID, will first be given to three healthy human volunteers to see if they suffer any adverse effects. If deemed safe, it will then be given to another small group of volunteers, aged 18 to 50, to see if it produces a strong immune response to the virus. All will be monitored closely for side effects.

The vaccine will be administered to volunteers by an injection in the deltoid muscle of their arm, first in a lower dose, then later in a higher dose after the safety of the vaccine has been determined.

Some of the preclinical studies that are normally done on these types of vaccines were waived by the FDA during the expedited review, Fauci said, so "we want to take extra special care that we go slowly with the dosing."