what is contact tracing & why is it important?
In this video, Hans Rosling explains the challenges of perfecting Contact Tracing. There's no Vaccine against Ebola. Behavioral change in Liberia has made the number of new infections go down. But not to zero. The only known way to eradicate the virus is to identify all infected people before they become contagious, trace their contacts and monitor their health status. But the system of Contact Tracing must be perfect so nobody falls outside.
For more from Professor Rosling, visit his organization Gapminder.org