In 1902 the Walter Reed Commission showed that the causative agent of Yellow Fever could pass through a bacteria proof filter. What was the implication of this finding? Yellow Fever was caused by a virus Yellow Fever could be grown in mouse brain cells Yellow Fever could be attenuated by passaging through the bacteria-proof filter Yellow Fever was caused by a really small bacteria
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Which of the following statements about yellow fever is false? a) There is no animal reservoir. b) The name "yellow" comes from the fact that many victims have jaundice. c) Certain mosquitoes are biological hosts for the causative agent. d) Outbreaks of the disease could occur in the United States because a suitable vector is present. e) An attenuated vaccine is widely used to prevent the disease.
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