{"disease":"pertussis","iso3":"SDN","granularity":"year","metric":"cases_annual","generated_at":"2026-11-02T04:03:11+00:00","series":[{"source_id":"gho_WHS3_43","start_year":1974,"values":[36767,37135,46605,82265,107979,98931,28631,41811,43905,862,1365,10314,20010,1115,327,521,566,312,271,264,127,1496,133,418,169,51,80,645,213,232,192,90,39,57,34,6,209,132,109,119,141,null,null,12,null,34,73,null,0,113,0,499]}],"first_year":1974,"last_year":2025,"n_years":48,"latest":{"year":2025,"value":499},"peak":{"year":1978,"value":107979}}