The Ebola-Reston subtype of the Ebola virus appeared in a primate research facility in Virginia, where it appears that transmission of Ebola from monkey to monkey occurred through the air. Ebola-Reston has not been shown to cause Ebola in humans.
(Click Causes of Ebola for more information on the subtypes of Ebola.)
While all Ebola virus species have displayed the ability to be spread through airborne particles (aerosols), under research conditions, this type of spread has not been documented among humans in a real-world setting, such as a hospital, or household.
Transmission of Ebola and Ebola Symptoms
When someone becomes infected, he or she will not feel sick immediately. For 2 to 21 days, the person feels normal; however, inside his or her body, the Ebola virus is multiplying. The period between infection with the virus and the beginning of Ebola symptoms is called the Ebola incubation period.
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