Zika virus infection

Very low urgency
Very common-

It is an infection caused by a virus from the Flaviviridae family. It mainly affects regions in South America and Africa. It is spreading rapidly and has the potential to become a global epidemic (pandemic).

The infection is caused by the Zika virus, which is transmitted by a mosquito bite. Infection has been reported through blood contact, sexual transmission and mother-to-child transmission.

In adults, it presents with non-specific symptoms such as mild headache, fever, general malaise and joint pain. It may also be accompanied by a skin rash and red eyes due to conjunctivitis. Symptoms usually last from 2 to 7 days.

The diagnosis is made clinically by questioning and physical examination, and confirmed by a blood test.

There is currently no vaccine or specific treatment.

If it occurs during the first trimester of pregnancy, it is considered a high-risk infection because of the complications for the foetus, such as microcephaly.

Bibliographic references
  1. A. Desiree LaBeaud. Zika virus infection: An overview. UpToDate. Octubre 2016
  2. Edward RB McCabe. Zika virus infection: Evaluation and management of pregnant women. UpToDate. Octubre 2016
  3. Musso D. Zika Virus. Clin Microbiol Rev 2016; 29:487.
  4. Anderson KB. The Emergence of Zika Virus: A Narrative Review. Ann Intern Med 2016; 165:175.
  5. Focosi D. Zika Virus: Implications for Public Health. Clin Infect Dis 2016; 63:227.
  6. Mlakar J. Zika Virus Associated with Microcephaly. N Engl J Med 2016; 374:951.
Author
Dr. Patricia Sánchez
Copyright
© TeckelMedical 2026

Symptoms

    Skin rash


    Both eyes red


    Itchy skin


    Multiple flat or slightly raised red bumps


    Pain in more than one joint

Symptoms to watch out for

Pregnancy
Reddening of limbs and torso with small rounded discoloured areas
Swelling of limbs and torso
Numbness or tingling of the lower limbs from the feet up.
Pain or sensitivity similar to a cramp
Difficulty walking unaided

Self-care

If you have pain, take over-the-counter analgesics.
If there is fever (temperature higher than 38 ºC) take over-the-counter antipyretics.
Maintain hydration of 2 litres per day.
Do not take antibiotics without medical advice.