Final answer:
The symptoms described are characteristic of several infectious diseases, but the most likely diagnosis based on the provided information is dengue fever.
Step-by-step explanation:
The symptoms described, including fever, maculopapular rash, and joint pain, are characteristic of several infectious diseases. However, based on the provided information, the most likely diagnosis is dengue fever. Dengue fever is caused by a virus transmitted by mosquitoes and typically presents with high fever, headache, rash, and joint pain. It is important for the patient to seek medical attention for proper diagnosis and management.