{"disease":"pertussis","iso3":"CHN","granularity":"year","metric":"cases_annual","generated_at":"2026-11-02T04:03:11+00:00","series":[{"source_id":"gho_WHS3_43","start_year":1974,"values":[1694350,1814134,1339710,1454477,1202922,736155,613648,510601,422280,331419,215965,147298,83979,59543,32937,26985,20015,10679,11182,9190,7199,5482,null,8678,7134,5974,5561,6407,6293,858,4705,3844,2595,null,2387,1612,1764,2517,2183,1712,3408,6658,5584,10390,22057,30027,4475,9611,38295,41124,476690,33364]}],"first_year":1974,"last_year":2025,"n_years":50,"latest":{"year":2025,"value":33364},"peak":{"year":1975,"value":1814134}}