Zika virus disease (Zika) is a disease disease by the Zika
virus, which is spread to people primarily through the bite of an infected
Aedes species mosquito. The most common symptoms of Zika are fever, rash, joint
pain, and conjunctivitis (red eyes). The illness is usually mild with symptoms
lasting for several days to a week after being bitten by an infected mosquito.
People usually don’t get sick enough to go to the hospital, and they very rarely
die of Zika. For this reason, many people might not realize they have been
infected. Whatever, Zika virus infection during pregnancy can cause a serious
birth defect called microcephaly, as well as other severe fetal brain defects.
Once a person has been infected, he or she is likely to be protected from
future infections.
Zika virus was first discovered in 1947 and is named after
the Zika Forest in Uganda. In 1952, the first human cases of Zika were detected
and since then, outbreaks of Zika have been reported in tropical Africa,
Southeast Asia, and the Pacific Islands. Zika outbreaks have probably occurred
in many locations. Before 2007, at least 14 cases of Zika had been documented,
although other cases were likely to have occurred and were not reported.
Because the symptoms of Zika are similar to those of many other diseases, many
cases may not have been recognized.
In May 2015, the Pan American Health Organization (PAHO)
issued an alert regarding the first confirmed Zika virus infection in Brazil.
On February 1, 2016, the World Health Organization (WHO) declared Zika virus a
Public Health Emergency of International Concern (PHEIC). Local transmission
has been reported in many other countries and territories. Zika virus will
likely continue to spread to new areas.

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