In medical specialty, the incidence rate represents the speed of latest cases of a condition discovered inside a given amount affected population in reference to the full population inside that these cases have arisen, the target population. It’s one in every of the foremost essential criteria for determinant the prevalence and speed of manifestation of unwellness. The incidence rate is usually expressed because the variety of cases per person-year of observation. Solely new cases square measure thought-about once computing the incidence rate, whereas cases that were diagnosed earlier are excluded. The population at risk live is typically obtained from census knowledge. Many insights will be gleaned from the incidence rate. Excluding providing info on the quantity of latest cases of unwellness that has occurred inside a community, it conjointly offers a pic of changes within the disease’s progression inside a population over time, and thus, may be a vital metric for pursuit chronic infectious diseases like TB and protozoal infection. The incidence rate conjointly allows comparisons to be created on the incidence of unwellness across immensely differing populations. Pharmacovigilance Journal discusses the latest research innovations and important developments in this field. Pharmacovigilance Journal is interested in the special fields related to the topics of this Journal.