The usual presence of any disease in the community that is generally observed over some time is known as Epidemic. When the prevalence of this disease rises above the general baseline level among the general population of the region and starts spreading rapidly, it is referred to as Epidemic.
An epidemic is the fast spread of infection to an enormous number of individuals in a guaranteed populace in a brief timeframe. When a new disease unfurls over a vast geographical area covering numerous countries and continents, and the majority of the people do not have immunity against it, the outbreak is termed a pandemic.
| FACTORS | Epidemic | PANDEMIC |
| SPREAD | SPREADS RAPIDLY IN GENERAL MASSES OF THE REGION AFTER OUTBREAK | In contrast with Epidemic, the spread is far greater, it affects people of many countries and continents |
| Time | Spread within a shorter time frame | For Pandemic, the spread of diseases is more important than time |
| Examples | Yellow Fever, Measles, Polio | Spanish Flu(1918-1920), the Asian Flu(1957-58), COVID-19 |
The following are the essential tools for preventing biological Hazards:
Many Indian states have recently used various provisions of the Epidemic Diseases Act of 1897 to combat COVID-19 diseases. When Biological disasters are to be dealt with, prevention plays a crucial role, as observed in the current Pandemic Onset.