Comment Re:Contagiousness (Score 2) 475
Don't confuse incubation period with symptomatic period with infectious period. With Ebola, incubation can be 3-21 days, but you are only infectious once you become symptomatic. Because unless you come in contact with bodily fluids, you won't catch it. (The problem is that if the host is extremely symptomatic, there is thrashing / spatter of fluids everywhere.)
This is unlike the common flu where are are infectious, even if non-symptomatic.
Fortunately, it is also highly unlikely to switch from being spread by droplets / fluids to becoming completely airborne. AIDS/HIV have been known about for decades, but have never made the switch from being a blood / fluid spread virus into an airborne virus. The sequence of random mutations required in order to switch infection style is huge.
(The Reston Ebola study was not able to prove simian to simian airborne transmission. So it's not 100% proved that Ebola can spread without physical contact.)
This is unlike the common flu where are are infectious, even if non-symptomatic.
Fortunately, it is also highly unlikely to switch from being spread by droplets / fluids to becoming completely airborne. AIDS/HIV have been known about for decades, but have never made the switch from being a blood / fluid spread virus into an airborne virus. The sequence of random mutations required in order to switch infection style is huge.
(The Reston Ebola study was not able to prove simian to simian airborne transmission. So it's not 100% proved that Ebola can spread without physical contact.)