Pyrexia, hyperpyrexia, hyperthermia.
To be in a state of having a fever - a person is febrile. If they don't present with a fever, they are afebrile.
fever 'n 'ague
The twins' names in "Fever 1793" were Joseph and William. They were friends of Mattie and helped her during the yellow fever epidemic in Philadelphia.
Typhoid Fever is a proper noun. It names a specific type of fever.
Alternate names for leptospirosis include mud fever, swamp fever, cane cutter's fever, rice field fever, Stuttgart disease, swineherd's disease, and Fort Bragg fever. More severe cases of leptospirosis are called Weil's syndrome or icterohemorrhagic fever
Yellow Fever
Other names for a cold sore are fever blister, oral herpes, labial herpes, herpes labialis, and herpes febrilis.
Josef & Craig
dance fever
Yes, "Valley Fever" is capitalized because it is a specific fungal infection caused by the Coccidioides fungus. The term refers to a particular disease and is often used in a formal context, similar to other disease names. However, in general conversation, it may be written in lowercase as "valley fever."
No, I read an article about scarlet fever, and it was not capitalized.
dengue is otherwise known as Three- day fever, Break bone fever and dandy fever.
Scarlet Fever is named such because of it's most visible symptom, a distinctive red rash which begins on the neck and chest, then spreads to other areas on the body. Although other symptoms, such as fever, sore throat, and swollen tongues, also accompany the infection, the rash is the most noticeable.