We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. Severe signs and symptoms can indicate DSS or DHF. a reduced difference between systolic and diastolic blood pressureĪnyone with severe symptoms needs immediate medical attention.changes in temperature from very hot to very cold.vomiting at least three times in 24 hours.Severe symptoms may then appear 24–48 hours later, or around 3–7 days after the person starts to feel unwell. If this happens, it can be life threatening.įirst, the fever typically falls to 99.5 to 100.4☏ (37.5 to 38☌). Severe symptomsīetween 0.5% and 5% of cases of dengue fever become severe. The fever may spike, go away for 24 hours, then spike again. The symptoms typically last between 2–7 days, and most people feel better after one week. If symptoms occur, there may be a sudden fever of around 104☏ (40☌) with one or more of the following: Around 75% of people with dengue fever will not experience symptoms. Symptoms of dengue fever will depend on the severity of the disease. Share on Pinterest Joao Paulo Burini/dorioconnell/Getty Images This article looks at the symptoms and causes of dengue fever and who is at risk. However, 509 cases in Puerto Rico were not related to travel. Some cases were in people who had traveled abroad. In 2021, there were 117 cases in the U.S. However, early recognition and treatment can help manage symptoms and prevent fatalities. These areas include some United States territories.įor most people, the best way to prevent dengue fever is to take steps to avoid mosquito bites. In 2019, the Food and Drug Administration (FDA) approved a vaccine for children ages 9–16 years who have had dengue in the past and live in areas where dengue is common. Severe symptoms can indicate dengue shock syndrome (DSS) and dengue hemorrhagic fever (DHF). Symptoms range of dengue fever from mild to severe. Four different viruses can cause dengue fever, and Aedes mosquitoes transmit it. It can lead to severe illness in some cases. Dengue fever, also known as breakbone fever, results from a mosquito-borne viral infection.
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