{"disease":"polio","iso3":"TZA","granularity":"year","metric":"cases_annual","generated_at":"2026-11-02T04:03:11+00:00","series":[{"source_id":"gho_WHS3_49","start_year":1980,"values":[91,69,26,101,108,340,230,578,4,3,3,4,9,1,9,null,9,10,66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}],"first_year":1980,"last_year":2018,"n_years":38,"latest":{"year":2018,"value":0},"peak":{"year":1987,"value":578}}