Stop tourists from ebola's affected countries entering to USA.

The World Health Organization warned on Oct 14th that the rate of infection can jump from 1,000 to 10,000 new cases every week if dramatic measures are not taken within the next 2 months.
The second medical staff that treated a tourist with Ebola has been infected.
The survival rate is about 50% and there is as of yet no proven treatment available.
Taking the temperature at the airport is inefficient since the incubation period may take up to 21 days, the person may not show symptoms arriving.
if a pandemic starts in USA, as is easy to spread through sweat and body secretions through broken skin or mucous membranes, schools, gyms, public parks, will have to shut down, as well as workplaces until is under control. The human and economic loss will be catastrophic.