What is Dengue? Causes, Signs and Symptoms, Diagnosis and treatment.

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https://www.youtube.com/watch?v=HAkYOOhbwos

Resumo

TLDRDengue fever is an acute infectious disease caused by the dengue virus, transmitted by Aedes mosquitoes. Symptoms typically appear between 3 to 14 days after a bite and may include high fever, severe pain, and rash. Some cases can develop into severe dengue or dengue hemorrhagic fever, marked by high-risk symptoms like abdominal pain and bleeding. Treatment focuses on managing symptoms, with severe cases requiring hospitalization and possible IV fluids. A vaccine, Dengvaxia, is available for some individuals to prevent dengue infections. It's essential for travelers to inform their doctors if they experience symptoms after visiting dengue-endemic areas.

Conclusões

  • 🌐 Dengue is caused by a virus transmitted by Aedes mosquitoes.
  • ⚠️ Symptoms often include fever, severe headaches, and joint pain.
  • 🩸 Severe dengue can lead to hemorrhagic fever and potentially life-threatening shock.
  • 💉 A vaccine for dengue, Dengvaxia, is available for ages 9-45.
  • 🏥 Treatment primarily focuses on managing symptoms and may require hospitalization.

Linha do tempo

  • 00:00:00 - 00:05:04

    Dengue is an acute infectious disease caused by the dengue virus, characterized by symptoms such as severe headache, joint pain, and rash. It is transmitted by Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus, commonly found in urban areas and capable of surviving in cooler climates. Following a mosquito bite, symptoms appear between 3 to 14 days, including fever, pain behind the eyes, muscle and joint aches, extreme fatigue, and in some cases, bleeding tendencies. Severe dengue is marked by warning signs like abdominal pain, consistent vomiting, and mucosal bleeding, which can lead to dengue hemorrhagic fever (DHF), marked by dangerous plasma leakage and potential shock. Treatment focuses on symptom management and may require hospitalization for severe cases. Diagnosis is through testing for the virus or antibodies, especially after travel to tropical regions. A dengue vaccine is available, introduced in Mexico in 2015, providing partial prevention for individuals aged 9 to 45.

Mapa mental

Vídeo de perguntas e respostas

  • What causes dengue fever?

    Dengue fever is caused by the dengue virus, which is transmitted by mosquitoes, primarily Aedes aegypti and Aedes albopictus.

  • What are the main symptoms of dengue fever?

    Symptoms include fever, headache, severe joint pain, rash, and fatigue, usually developing 3 to 14 days post-infection.

  • What is dengue hemorrhagic fever?

    Dengue hemorrhagic fever (DHF) is a severe form of dengue characterized by plasma leakage, low platelet count, and severe bleeding.

  • How is dengue diagnosed?

    Diagnosis is made through tests that detect the virus or antibodies and by evaluating symptoms post-travel to tropical areas.

  • Is there a vaccine for dengue?

    Yes, the first dengue vaccine, Dengvaxia, is available for individuals aged 9 to 45, administered in a three-dose series.

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  • 00:00:00
    today's topic is dengue an acute
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    infectious disease that is characterized
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    by headache severe joint pain and a rash
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    that is caused by a single-stranded RNA
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    virus of the genus flavivirus or species
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    dengue virus transmitted by mosquitoes
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    of the genus 80s called also breakbone
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    fever dandy fever or dengue fever causes
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    the viruses that cause dengue fever are
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    spread by mosquitoes of the species
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    Aedes aegypti and sometimes also by
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    Aedes albopictus a these mosquitoes are
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    usually found in urban and suburban
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    areas as they like to breed in man-made
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    containers like tires flowerpots and
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    household water
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    Aedes albopictus mosquitoes have been
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    transported to America and Europe by
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    Asian products like use tires and lucky
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    bamboo these mosquitoes can survive
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    sub-freezing temperatures which has
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    allowed dengue to spread to cooler
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    climates signs and symptoms symptoms of
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    dengue fever typically developed between
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    3 and 14 days after a person is bitten
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    by an infected mosquito classic symptoms
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    include fever headache and pain behind
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    the eyes severe muscle and joint pains
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    the source of dengue znik name breakbone
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    fever extreme fatigue rash appearing
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    between the 2nd and 5th day of fever
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    tendency to bleed from the skin or nose
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    bloody stools or heavy menstrual
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    bleeding nausea and vomiting respiratory
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    symptoms such as a cough sore throat or
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    nasal congestion
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    these symptoms usually last for three to
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    seven days at which point the fever
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    breaks after the fever breaks people
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    either start to get better or get much
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    worse
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    developing severe dengue according to
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    the World Health Organization guidelines
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    any of the following symptoms are
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    warning signs that may signal the
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    development of severe dengue often
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    called dengue hemorrhagic fever or dhf
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    abdominal pain or tenderness persistent
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    vomiting lethargy or restlessness
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    mucosal bleeding such as bleeding gums
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    or nosebleeds liver enlargement fluid
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    accumulation in the lungs or abdomen as
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    shown by x-rays or ultrasound dengue
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    hemorrhagic fever dengue hemorrhagic
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    fever or dhf is the most serious form of
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    dengue infection VHF is a clinical
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    syndrome defined by four key features
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    increased permeability of blood vessels
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    leading to plasma leakage into the
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    surrounding tissues and lack of plasma
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    in the bloodstream which makes the blood
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    more concentrated low blood platelet
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    count fever that lasts for two to seven
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    days tendency towards severe or
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    hemorrhagic bleeding severe bleeding or
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    hemorrhage isn't the most dangerous
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    symptom of dhf the most life-threatening
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    concern is the leakage of the liquid
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    part of the blood or plasma into tissue
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    surrounding the blood vessels when this
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    happens not only can dangerous pockets
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    of fluid accumulate where they don't
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    belong such as in the lungs or abdomen
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    but there also isn't enough fluid left
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    in the blood vessels to circulate the
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    blood properly this inability to
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    circulate blood properly is called shock
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    shock is life-threatening and can lead
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    to metabolic problems and organ failure
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    treatment of shock requires
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    hospitalization in an intensive care
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    unit or ICU for close monitoring and for
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    the administration of medication that
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    raises blood pressure into a normal
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    range
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    the term dengue shock syndrome or DSS is
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    used when an infected person has gone
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    into shock
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    diagnosis doctors can diagnose dengue
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    infection with a
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    one test to check for the virus or
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    antibodies to it if you become sick
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    after traveling to a tropical area let
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    your doctor know this wall out your
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    doctor to evaluate the possibility that
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    your symptoms were caused by a dengue
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    infection treatment as with most viruses
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    treatment options for dengue will only
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    manage its symptoms pain relievers that
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    don't make bleeding worse may be taken
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    intravenous or IV fluids may be given to
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    help prevent shock but frequent blood
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    draws and other assessments must be
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    performed to make sure the IV fluids
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    aren't making the person sicker dengue
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    fever vaccine the first dengue vaccine
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    dank vaccine was made available in
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    Mexico in December of 2015 this live
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    vaccine which covers all four dengue
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    subtypes is given to people ages 9 to 45
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    as a three dose series ding back SIA has
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    been shown to prevent about 59% of
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    dengue cases thank you for watching our
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Etiquetas
  • Dengue
  • Dengue fever
  • Aedes mosquitoes
  • Symptoms
  • Treatment
  • Diagnosis
  • Vaccination
  • Severe dengue
  • Dengue hemorrhagic fever
  • Health awareness