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Whooping cough cases in Oregon surge, officials urge vaccines
Whooping cough cases surge across the Pacific Northwest
Oregon health officials sound alarm, say pertussis cases ... - KTVZ
Oregon whooping cough cases on track to beat state record
Whooping cough cases surge across the Pacific Northwest - KLCC
Whooping cough, a threat to babies, surges in Oregon | News ...
Oregon whooping cough cases trend toward record as …
827 whooping cough cases reported across Oregon | kgw.com
Oregon reports sharp rise in whooping cough cases, urges …
Over 800 whooping cough cases reported in Oregon, one death …
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