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Zika fever, also known as Zika virus disease or simply Zika, is an infectious disease caused by the Zika virus. [1] Most cases have no symptoms, but when present they are usually mild and can resemble dengue fever. [1] [4] Symptoms may include fever, red eyes, joint pain, headache, and a maculopapular rash.
Zika is transmitted from pregnant women to the fetus ("vertical transmission"), and causes microcephaly and other severe brain anomalies in infants born of women infected with the virus. [8] [10] [102] A baby with microcephaly (left) compared to a baby with a typical head size. Zika infections in adults can cause Guillain–Barré syndrome. [10]
Zika fever (also known as Zika virus disease) is an illness caused by Zika virus. [80] Around 80% of cases are estimated to be asymptomatic, though the accuracy of this figure is hindered by the wide variance in data quality, and figures from different outbreaks can vary significantly. [ 81 ]
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Jaxon Strong was born with microhydranencephaly a form of microcephaly -- a birth defect that affects the brain and that has recently made headlines due to links to the Zika virus.
A Zika virus infection might be suspected if symptoms are present and an individual has traveled to an area with known Zika virus transmission. [29] Zika virus can only be confirmed by a laboratory test of body fluids, such as urine or saliva, or by blood test.
Similarly, about one in four people who contract dengue develop symptoms lasting two to seven days, but symptoms are usually mild and may include fever, rash, nausea, vomiting, muscle pain, joint ...