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Study: Partial Dose of Yellow Fever Vaccine Provides Protection

When stockpiles of yellow fever vaccine run low, partial doses are effective, according to a new study. The report on the vaccine, which currently is in short supply, comes as officials in Brazil attempt to contain an outbreak with what they describe as the largest-ever mass vaccination campaign using partial doses. Yellow fever is a mosquito-borne viral disease found in tropical Africa and South and Central America. Severe cases can cause jaundice and death, but most cases involve...

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