Total death toll to date from EVD is 4922 http://apps.who.int/iris/bitstream/10665/137185/1/roadmapupdate25Oct14_eng.pdf?ua=1

It is actually quite a difficult disease to contract from people. During the incubation period, people are not infective and once symptoms start in earnest they are virtually immobile unless someone else takes them somewhere - like the 2 year old girl in Mali.

The problem is that the fatality rate is 50% or more. As a comparison, the fatality rate for Hendra Virus is 60%. It is this high fatality rate that has people (including governments) spooked

Agronomist,

Also the number of health care workers who have contracted the disease while tending patients.

Even in first world medical facilities - if strict protocol has been flouted even in a minor way.

One of the things about EVD is that humans are most infectious while they are dying or recently dead. Hence there is quite a high risk to health workers.

However, getting quality treatment in the early stages of the disease dramatically increases the survival rate.

Hasbeen: We should immediately give them a one way ticket, with the assurance that they are on their own, & will definitely not be allowed back into Australia until it is sure that the thing has fully burnt out.

Yep. I agree with that entirely.

The girl at the centre of the latest scare arrived with her family and intended to stay indefinitely, that leads me to conclude that they are well off Africans or that one parent is non African and they're over here to wait out the epidemic.
As Poirot pointed out, it's the poor and dumb people who are dying, the Africans with the wherewithal to take extended holidays overseas aren't likely to be sick.
There's another flock of chickens coming home to roost and another indictment of mass third world migration, though not the one you'd expect.
Something like half of all qualified African medical personnel are living out of their home countries, mostly in Europe and North America so imagine trying to fight an epidemic here with only half our doctors and nurses available for duty.
The "brain drain" caused by Western immigration policies has been called a crime against humanity before, now we see why.

A virus that scares the hell out of scientists is not one that should be dismissed lightly.

After years of scientific interest, the animals that are the reservoirs for the virus are not known. Bats are likely suspects. Bats (including flying foxes) can carry bacteria and viruses which can be serious for humans. For example, an estimated 1% of Australian bats carry lyssavirus (ABLV).

http://www.abc.net.au/science/articles/2014/07/30/4056579.htm

Given that bacteria and viruses mutate, the reservoirs of Ebola are not known and the consequences of the virus becoming established elsewhere are horrendous, what should be the prudent risk treatments implemented by responsible governments?