Public health is considered as the overall or an average health of a community which is completely based on health analysis. The term public health itself says that the health which may be considered over a group of people or over a community. The term public health is often used when it comes to a nation. A country is said to have a good economy if the public health of the people living in it is good. Thus now days all the nations are focusing on public health in their country. More over many public awareness programs such as programs based on polio vaccine, HIV+ or AIDS, diabetes control programs and many such programs help in keeping health of people in a good condition. Many nations have also taken prevention measures such as allocation of free vaccinations and condoms, have helped in keeping the public health to be good.