{"disease":"pertussis","iso3":"MMR","granularity":"year","metric":"cases_annual","generated_at":"2026-11-02T04:03:11+00:00","series":[{"source_id":"gho_WHS3_43","start_year":1974,"values":[3109,11451,13775,15056,10795,37973,26878,31424,41765,22215,11747,10238,9783,5757,2547,3819,7882,2455,1486,1592,551,871,331,120,46,34,55,null,61,19,100,11,13,13,5,3,0,5,2,14,5,5,2,4,28,30,13,null,null,50,28,33]}],"first_year":1974,"last_year":2025,"n_years":49,"latest":{"year":2025,"value":33},"peak":{"year":1982,"value":41765}}