Diseases & National Health Programme
Burden of tuberculosis in a community is indicated by: (DNB June 10)
|B||Tuberculin conversion rate|
|C||Incidence of new cases|
|D||Prevalence of infection|
Annual infection rate reflects the annual risk of being infected (one-infected) by Mycobacterium tuberculosis in a given community. It is the percentage of population under study who will be newly infected by Mycobacterium tuberculosis among the noninfected. of the preceding survey during the course of one year. It is also known as Tuberculin conversion index and is considered one of the best indicators for evaluating the tuberculosis problem and its trend (higher the rate, greater the problem).