Rio declares dengue emergency as Brazil gears up for carnival – CNN

1. Rio declares dengue emergency as Brazil gears up for carnival  CNN
2. Brazil starts mass vaccination amid upsurge in dengue fever  The Guardian
3. Dengue spreads fast in Brazil prompting emergency health measures  Reuters
4. Brazil Places Millions Under Public Health Emergency On Eve Of Carnival—As Dengue Outbreak Grows  Forbes
5. South America Dengue Increase Brings Vaccination Drive  VOA Learning English

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