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Zika Virus, Antibodies IgG

Includes 1 test
10 Days

The measurement of IgG antibodies against the Zika virus is used as an aid in the diagnosis of the disease.

The Zika virus is a mosquito-borne viral infection caused by the Zika virus, a member of the Flaviviridae family. It was first identified in Uganda in 1947 and remained relatively obscure until a significant outbreak occurred in 2015-2016, primarily in the Americas. The virus is transmitted primarily by Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus.

Causes and Transmission: The Zika virus is primarily transmitted to humans through the bite of infected Aedes mosquitoes. These mosquitoes are also responsible for transmitting other viruses such as dengue and chikungunya. The virus can also be transmitted through sexual contact, from a pregnant woman to her fetus, and through blood transfusions.

Symptoms: Many people infected with the Zika virus do not show symptoms, or the symptoms are mild and self-limiting. When symptoms do occur, they usually appear within a few days to a week after infection and may include:

  • Fever: Mild to moderate fever.
  • Rash: Skin rash, often with small red spots.
  • Joint Pain: Pain in the joints, particularly the wrists, knees, and ankles.
  • Conjunctivitis: Redness and irritation of the eyes (conjunctivitis).
  • Muscle Pain: Muscle pain and headaches may also occur.

Symptoms typically last for a few days to a week. Severe complications are rare in most cases, but Zika virus infection during pregnancy can lead to serious birth defects in the developing fetus, particularly microcephaly (abnormally small head and brain) and other neurological complications.

Diagnosis and Treatment: Diagnosing Zika virus infection involves clinical assessment and laboratory tests to detect the presence of the virus or its genetic material in blood, urine, or other body fluids.

A presumptive positive result by IgG or IgM antibodies only suggests infection with Zika virus. These results should not be considered diagnostic for Zika virus infection. False-positive results may occur in patients infected with other, closely related flaviviruses, including dengue virus, or in patients who have been vaccinated against yellow fever virus. Confirmatory testing of presumptive or possible positive samples may be required and evaluation of samples by real-time polymerase chain reaction for Zika virus may also be warranted.

Prevention: Preventing Zika virus infection involves various strategies to avoid mosquito bites, reduce the risk of sexual transmission, and protect pregnant women:

  • Mosquito Control: Eliminate mosquito breeding sites, use insecticides, and wear protective clothing to prevent mosquito bites.
  • Safe Sexual Practices: Use condoms or abstain from sexual activity if you or your partner have traveled to areas with Zika virus transmission.
  • Pregnancy Precautions: Pregnant women should avoid travel to Zika-affected areas and take measures to prevent mosquito bites if residing in such areas.
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