| Title | : | WHO Influenza, an Unpredictable Threat |
| Duration | : | 14 minutes, 2 seconds |
| Uploader | : | World Health Organization (WHO) |
| Added On: | : | 10 August, 2015 |
| Views | : | 175.0K times |
| Likes | : | 0 |
| Source | : | YouTube |
Several influenza pandemics affected the world population over the course of the 20th and early 21st centuries and the threat of the next pandemic looms large. This film explains a number of key aspects of the constant evolutions of influenza viruses and
