Tuberculosis control is achieved when -: (A) Tuberculosis conversion index in infants is <1%, (B) Prevalence on natural infection in age group 0-14 years is in order of 10%, (C) Annual infection rate <5%, (D) Prevalence of natural infection in 0-14 years is <1%
Answer is D. Park&;s Textbook of Preventive and Social Medicine 23rd edition Page no: 182 Tuberculosis control means reduction in the prevalence and incidence of disease in the community