{"id":"S91006354","label":"Public health surveillance","description":"Here are entered works on the systematic collection and evaluation of data on the incidence and distribution of diseases and injuries for the purpose of their prevention.","source_url":"https://id.loc.gov/authorities/subjects/sh91006354","normalized_label":"public health surveillance","broader":["http://id.loc.gov/authorities/subjects/sh85044373"],"aliases":["Population surveillance (Public health)","Surveillance, Public health"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91006354","provider":"lcsh","revision":"6424e8565f82390a","taxonomy_revision":"f050b5d4780b1289","title":"Public health surveillance","url":"/topics/S91006354","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5207428082587534914","address_version":"morton4x16-v1","coordinates":[0,21,45718,18432],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}