The correct translation of "yellow fever是什么意思" in English is "What does yellow fever mean?" Yellow fever is a viral disease transmitted by mosquitoes that primarily affects tropical areas of Africa and South America. It is characterized by symptoms such as fever, headache, jaundice, and bleeding, and can be severe or even fatal in some cases. Yellow fever can be prevented through vaccination and mosquito control measures. It is important to seek medical attention if one suspects they have contracted yellow fever, as early diagnosis and treatment can greatly improve the outcome. Overall, yellow fever is a serious health concern in regions where it is prevalent, and it is crucial for individuals traveling to these areas to take precautionary measures to minimize the risk of infection.