A possible pandemic? (Part 2)

Almost a century has passed, and with development of new technologies, one may think that an outbreak will not happen. However, influenza has evolved and has lots of variations. The Spanish flu actually evolved from a bird flu virus type H1N1. The bird flu, type H5N1, is now the most threatening of the flu viruses, since it has spread around the world through migratory birds, then from birds to humans. Scientists fear that once human to human infection occurs, it might become a pandemic, unless vaccines and other measures are developed and implemented – not just by health providers, but governments as well.