Cold? Flu? H1N1? How can you tell the difference?

H1N1 or better jnolw as the swine flu has been traveling throughiut the country. It is a disease coming from an unknown source but is very dangerous. Within the upcoming flu season doctors fear that the the combination of H1N1 and the seasonal flu will combine and make the situation worse. The infectious disease experts are saying people need to be aware of their symptoms. It been said that the common cold, seasonal flu and H1N1 are all respiratory illnesses, but they're caused by different viruses.