 Dr. Carl Spears is a physician with Mission My Care Now telling NCN. The symptoms usually start four to seven days after a mosquito bite. Pain behind the eyes or with eye movement, sometimes abdominal pain, sometimes a rash, bleeding from the gums, blood in the stool, vomiting blood, abdominal pain. World Health Organization defining Deng as a viral infection that spreads from mosquitoes to humans, most common in tropical and subtropical climates.