Epidemiology of Infectious Diseases
Theepidemiology involves study of frequency, occurrence and medium of infection in the population. The major cause of sickness and death around the world is due to the deadly . Until the beginning of 20th century infectious disease constituted critical health issues all around the world, also in developing countries, the chronic diseases began to overtake this scenario. To the epidemiological profile the re-emerging were an addition, where infectious disease have more importance in the morality rates of the population.