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Yellow Fever Virus, Neutralizing Antibodies

Includes 1 test
Blood
10 Days
55€

The measurement of neutralizing antibodies against the yellow fever virus is used to test the effectiveness of the vaccine against the virus.

More Information

Yellow fever is a viral infection caused by the yellow fever virus, a member of the Flaviviridae family. It is a severe, mosquito-borne disease that can cause a range of symptoms, from mild flu-like symptoms to severe illness and even death. Yellow fever is a significant public health concern in parts of Africa and South America, where it is endemic. Outbreaks can lead to high morbidity and mortality rates. Efforts to control the disease involve vaccination campaigns, mosquito control, and surveillance.

The yellow fever virus is an enveloped virus with a single-stranded, positive-sense RNA genome. It belongs to the Flavivirus genus, which includes other well-known viruses like dengue virus, Zika virus, and West Nile virus. The virus is spherical in shape and has a diameter of about 40-50 nanometers.

Transmission: Yellow fever is primarily transmitted through the bite of infected Aedes mosquitoes, particularly Aedes aegypti, and sometimes Aedes albopictus. In regions where the virus is endemic, non-human primates can also serve as a reservoir, and mosquitoes can transmit the virus between primates and humans.

The disease occurs in two main transmission cycles:

  • Sylvatic (Jungle) Cycle: In this cycle, the virus primarily circulates between non-human primates and forest-dwelling mosquitoes. Humans can become infected when they enter the jungle and are bitten by infected mosquitoes.
  • Urban Cycle: The virus can also be transmitted in urban areas, where Aedes mosquitoes primarily bite humans. This cycle can lead to larger outbreaks and can potentially cause urban epidemics.

Symptoms: The symptoms of yellow fever can vary widely in severity:

  • Mild Cases: Many people infected with the yellow fever virus show no symptoms or only experience mild symptoms, which can include fever, headache, muscle pain, joint pain, and nausea or vomiting.
  • Severe Cases: In more severe cases, after a brief period of improvement, symptoms can return with greater intensity. High fever, jaundice (yellowing of the skin and eyes), abdominal pain, vomiting, and bleeding from various body parts can occur. This severe form of yellow fever can be fatal.

Diagnosis and Treatment: Diagnosing yellow fever involves clinical assessment, laboratory tests to detect the virus or its genetic material in blood samples, and evaluation of liver function. There is no specific antiviral treatment for yellow fever; supportive care is provided to manage symptoms and complications. Severe cases require hospitalization for close monitoring and medical intervention.

Prevention: Preventing yellow fever involves vaccination, vector control, and personal protection measures:

  • Vaccination: The yellow fever vaccine is highly effective and provides long-lasting immunity. It's recommended for individuals living in or traveling to areas where the virus is endemic. The vaccine is typically required for entry into certain countries.
  • Mosquito Control: Reducing mosquito populations through measures such as eliminating breeding sites, using insecticides, and using bed nets can help prevent transmission.
  • Protective Clothing: Wearing long-sleeved clothing and using insect repellents can reduce the risk of mosquito bites.
Additional information
Tests includedIncludes 1 test
Sample Blood
Procedure completion test
Step 1

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Step 2

Sampling

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Step 3

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