Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Feb 4, 2013
Feb. 4 - Bats can harbour some of the world's most deadly viruses without ever getting sick and researchers in Singapore are trying to find out how they do it. By investigating the creatures' genetic structure, the scientists hope to eventually find the key for humans to fight infectious disesases. Elly Park reports.