Sandfly fever means: Sandfly fever is an acute viral illness that causes severe symptoms such as headaches, fever and eye pain. It occurs mainly in warm climates around the globe. This is transmitted to you by the sandflies by Phleboviruses. Sandfly fever can also be called pappataci, phlebotomus, or three-day fever.
(in Medical Dictionary)

What else does Sandfly fever mean?

Mild viral infection transmitted via the bite of a Sandfly

(Phlebotomus papatasii),

This is characterized as headaches, fever, eye pain, nausea, and malaise.
(in Merlin Dictionary)