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    274990

    District guidelines for yellow fever surveillance.

    World Health Organization [WHO]. Division of Emerging and Other Communicable Diseases Surveillance and Control; World Health Organization [WHO]. Expanded Programme on Immunization [EPI]

    Geneva, Switzerland, WHO, Division of Emerging and Other Communicable Diseases Surveillance and Control, 1998. 59 p. (WHO/EPI/GEN/98.09)

    Yellow fever is a viral haemorrhagic fever transmitted by mosquitos infected with the yellow fever virus. The disease is untreatable, and case fatality rates in severe cases can exceed 50%. Yellow fever can be prevented through immunization with the 17D yellow fever vaccine. The vaccine is safe, inexpensive and reliable. A single dose provides protection against the disease for at least 10 years and possibly life-long. There is high risk for an explosive outbreak in an unimmunized population—and children are especially vulnerable—if even one laboratory-confirmed case of yellow fever occurs in the population. Effective activities for disease surveillance remain the best tool for prompt detection and response to an outbreak of yellow fever especially in populations where coverage rates for yellow fever vaccine are not high enough to provide protection against yellow fever. The guidelines in this manual describe how to detect and confirm suspected cases of yellow fever. They also describe how to respond to an outbreak of yellow fever and prevent additional cases from occurring. The guidelines are intended for use at the district level. (excerpt)
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