Table of Contents
- Dengue fever facts
- What is dengue fever? What causes dengue fever?
- What geographic areas are at high risk for contracting dengue fever?
- What geographic areas are at high risk for contracting dengue fever? (continued)
- How is dengue fever contracted? Is dengue fever contagious?
- What is the incubation period for dengue fever?
- What are dengue fever symptoms and signs?
- What tests do health care providers use to diagnose dengue fever?
- What is the treatment for dengue fever?
- What types of doctors treat dengue fever?
- How long does dengue fever last?
- What is the prognosis for typical dengue fever?
- What is dengue hemorrhagic fever?
- What are potential complications of dengue fever?
- Is it possible to prevent dengue fever?
- Is there a dengue fever vaccine?
- Where can people get more information on dengue fever?
What are dengue fever symptoms and signs?
Dengue fever starts with symptoms of chills, headache, pain in the back of the eyes that may worsen upon moving the eyes, appetite loss, feeling unwell (malaise), and low backache. Painful aching in the legs and joints occurs during the first hours of illness. The temperature rises quickly as high as 104 F (40 C), with relatively low heart rate (bradycardia) and low blood pressure (hypotension). The eyes become reddened. A flushing or pale pink rash comes over the face and then disappears. The lymph nodes in the neck and groin are often swollen.
High fever and other signs of dengue last for two to four days, followed by a rapid drop in body temperature (defervescence) with profuse sweating. This precedes a period with normal temperature and a sense of well-being that lasts about a day. A second rapid rise in temperature follows. A characteristic itchy rash (small red spots, called petechiae) appears along with the fever and spreads from the extremities to cover the entire body except the face. The palms and soles may be bright red and swollen.