Influenza is a contagious infectious disease and every year approximately 5%-15% of the worlds population is infected. An influenza pandemic occurs when approximately 20%-40% of people are infected worldwide. In the last century, three major pandemics were observed which killed millions of people. In 2009, a novel human to human transmissible influenza A (H1N1) virus caused the first influenza pandemic of the century, killing thousands of people worldwide. Since influenza viruses can reassort and mutate, there will always be a chance of emergence and re-emergence of novel human to human...