The last flu pandemic declared by WHO was in 1968. H1N1 has infected nearly 30,000 people in 74 countries, says WHO Director-General Dr Margaret Chan. Chan says further spread is “inevitable” and the 2009 influenza pandemic is still in its early stages. Chan: Virus is stable, yet Chan says it may still mutate into a deadlier form, and could take on the characteristics of the separate H5N1 bird flu virus still circulating in poultry populations.”]
Source: https://www.govinfosecurity.com/pandemic-declared-by-who-a-1540