Both the epidemic and the pandemic refer to the proliferation of contagious diseases in a given population. Basically there are two differences between epidemic and pandemic. A much larger population is affected by a pandemic, and affects a larger region or area, and could sometimes affect the entire world population.
The difference between an epidemic and a pandemic is that an epidemic generally occurs when a disease prevails in an unusual number of people, or more than is expected. Meanwhile, a pandemic affects a larger group of the population, or much more than an epidemic.

Flu, for example, becomes prevalent in a particular area or locality, or perhaps in a city or county. This becomes an epidemic. More far-reaching, if the disease or illness, or in this case the swine flu virus, spreads across countries and even penetrates different continents and spreads across different populations, this becomes a pandemic.
The difference between epidemic and pandemic can also be determined by concentration levels or the incidence of disease spread. It could be that a disease or illness has spread throughout an entire nation, but the level of concentration is not pronounced. This is an epidemic.
But once the prevalence or concentration becomes so high, even if it is confined to a single country, this can already be considered a pandemic outbreak. An epidemic becomes a pandemic when the spread of the disease becomes uncontrolled and relatively uncontrolled.
Swine Flu Vaccines
The H1N1 flu vaccine is available in the United States, but at levels far lower than promised. While the supply increases daily, it has been a real effort to get enough vaccines to cover the people who want it. When it comes to a virus that has the potential to kill, people are often scared and will do their best to ease their anxiety.
The swine flu virus and the vaccine to stop it are on the rise. It comes in nasal spray and injectable form, and has caused a lot of controversy about the level of safety of the vaccine compared to the risk without the vaccine. While there is a difference of opinion, right now it is all we have and this is especially true for our at-risk members of society stay at home, such as the very young, those with underlying medical conditions, and the very old.
Swine flu virus: pros and cons
There are advantages and disadvantages of the swine flu virus versus the swine flu vaccine. Ultimately, if you want to have the best chance of surviving the pandemic flu, you will have to choose to risk the known side effects versus the unknown amount of whether or not you will get the swine flu virus this winter.



