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Oregon whooping cough cases on track to beat state record
Oregon health officials sound alarm, say pertussis cases ... - KTVZ
Oregon whooping cough cases trend toward record, prompting …
827 whooping cough cases reported across Oregon | kgw.com
Oregon reports sharp rise in whooping cough cases, urges …
Oregon whooping cough cases increase 770%, prompting OHA …
Oregon whooping cough cases rise sharply - oregonlive.com
Whooping cough cases spike in Oregon, health officials warn
Oregon health officials warn of rise in whooping cough cases - KPTV
Whooping cough spreading in Clark County, officials worried as …
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