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Yellow fever is a viral an infection unfold by mosquitoes.

de Havilland Mosquito TT.35 - This Mosquito belongs to Kermi… - Flickr de Havilland Mosquito TT.35 - 웹Alternative Names

Tropical hemorrhagic fever brought on by yellow fever virus

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Yellow fever is brought on by a virus carried by mosquitoes. You can develop this illness in case you are bitten by a mosquito contaminated with this virus.

This illness is widespread in South America and in sub-Saharan Africa.

Anyone can get yellow fever, however older individuals have the next danger of extreme an infection.

If an individual is bitten by an contaminated mosquito, signs often develop Three to six days later.

Symptoms

Yellow fever has Three phases:

  • Stage 1 (an infection): Headache, muscle and joint aches, fever, flushing, lack of urge for food, vomiting, and jaundice are widespread. Symptoms typically go away briefly after about Three to four days.
  • Stage 2 (remission): Fever and different signs go away. Most individuals will get well at this stage, however others could worsen inside 24 hours.
  • Stage 3 (intoxication): Problems with many organs could happen, together with the center, liver, and kidney. Bleeding problems, seizures, coma, and delirium may additionally happen.

Symptoms could embrace:

  • Fever, headache, muscle aches
  • Nausea and vomiting, presumably vomiting blood

Red eyes, face, tongue
– Yellow pores and skin and eyes (jaundice)
Decreased urination

  • Delirium
  • Irregular heartbeats (arrhythmias)
  • Bleeding (could progress to hemorrhage)
  • Seizures
  • Coma

Exams and Tests

The well being care supplier will carry out a bodily examination and order blood exams. These blood exams could present liver and kidney failure and proof of shock.

It is necessary to inform your supplier when you’ve got traveled to areas the place the illness is understood to thrive. Blood exams can verify the analysis.

There is not any particular therapy for yellow fever. Treatment for signs can embrace:

  • Blood merchandise for extreme bleeding
  • Dialysis for kidney failure
  • Fluids by way of a vein (intravenous fluids)

Outlook (Prognosis)

Yellow fever may cause extreme issues, together with inner bleeding. Death is feasible.

Possible Complications

Complications which will outcome embrace:

  • Coma
  • Death

Disseminated intravascular coagulation (DIC)
Kidney failure

  • Liver failure
  • Salivary gland an infection (parotitis)

Secondary bacterial infections
Shock

When to Contact a Medical Professional

See a supplier no less than 10 to 14 days earlier than touring to an space the place yellow fever is widespread to seek out out whether or not try to be vaccinated towards the illness.

Tell your supplier immediately in the event you or your little one develops fever, headache, muscle aches, vomiting, or jaundice, particularly when you’ve got traveled to an space the place yellow fever is widespread.

There is an efficient vaccine towards yellow fever. Ask your supplier no less than 10 to 14 days earlier than touring if try to be vaccinated towards yellow fever. Some international locations require proof of vaccination to achieve entry.

If you can be touring to an space the place yellow fever is widespread:

  • Sleep in screened housing
  • Use mosquito repellents
  • Wear clothes that absolutely covers your physique

References

Centers for Disease Control and Prevention web site. Yellow fever. www.cdc.gov/yellowfever. Updated July 12, 2016. Accessed February 15, 2017.

Kivlehan SM, Villar J, Kanzaria HK. Mosquitoes and mosquito-borne ailments. In: Auerbach PS, Cushing TA, Harris NS, eds. Auerbach’s Wilderness Medicine. seventh ed. Philadelphia, PA: Elsevier; 2017:chap 39.

Thomas SJ, Endy TP, Rothman AL, Barrett AD. Flaviviruses (dengue, yellow fever, Japanese encephalitis, West Nile encephalitis, St. Louis encephalitis, tick-borne encephalitis, Kyasanur Forest illness, Alkhurma hemorrhagic fever, Zika). In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett’s Principles and Practice of Infectious Diseases, Updated Edition. eighth ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 155.

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