Microbiology A patient has arthralgia, a rash, lymphadenopathy, pneumonia but no fever. Which of the following diseases is most likely based on these symptoms? A Dengue fever B St. Louis encephalitis C Infectious mononucleosis D Hepatitis 💡 Explanation A patient has arthralgia, a rash, lymphadenopathy, pneumonia but no fever. Which of the following diseases is most likely based on these symptoms? ✓ Correct Answer: A. Dengue fever