The posters contain three questions which should help travellers assess their personal risk of having contracted Ebola or Middle Eastern Respiratory Syndrome, and includes an emergency phone number.
Oberhauser said that Austria is "well prepared" and "very vigilant" in the event that Ebola should spread across Europe. She added that the danger was "not to be underestimated".
She also said that it was Europe’s duty to try and help the affected West African countries of Liberia, Guinea and Sierra Leone.
European foreign ministers are due to meet in Luxembourg on Monday to discuss how to strengthen their response to the threat posed by the spread of the Ebola virus.
Meanwhile, a Spanish nurse who became the first person to contract Ebola outside West Africa has now tested negative for the virus, the Spanish government says.
So far, more than 4,500 people have been reported as having died from the disease in Liberia, Guinea, Sierra Leone, and Nigeria.
The World Health Organisation (WHO) admits the figures are underestimates and warns there could be as many as 20,000 cases by November if efforts to tackle the outbreak are not stepped up.
Symptoms of Ebola include high fever, bleeding and central nervous system damage. It is spread by body fluids, such as blood and saliva.