{"disease":"polio","iso3":"VNM","granularity":"year","metric":"cases_annual","generated_at":"2026-11-02T04:03:11+00:00","series":[{"source_id":"gho_WHS3_49","start_year":1980,"values":[1741,644,897,1109,1158,1600,938,1449,839,427,723,612,557,452,121,137,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}],"first_year":1980,"last_year":2017,"n_years":38,"latest":{"year":2017,"value":0},"peak":{"year":1980,"value":1741}}