Data about recent trends of immunization in the community can be found by:
Sample registration system
District level health survey
Rural survey
Census data
Ans: B. District level health survey(Ref Park's 22/e p786)District Level Health Survey - Objectives:Coverage of ante-natal, natal and post-natal checkups and child immunization.Propoion of institutional/safe deliveries.JSY beneficiaries.Contraceptive prevalence rates.Unmet need for contraceptives - Spacing & limiting.Awareness about I/ STI and HIV/AIDS.Ministry of Health and Family Welfare (MOHFW), Government of India, has included the Clinical, Anthropometric and Biochemical (CAB) component for data collection in the District Level Household Survey (DLHS)-4.