[public-health] MEDICAL: DISEASES: ZIKA: Infectious Diseases / Bacteria / Viruses : Zika Virus: Symptoms, Facts, Diagnosis

 

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MEDICAL: DISEASES: ZIKA:

Infectious Diseases / Bacteria / Viruses :

Zika Virus: Symptoms, Facts, Diagnosis

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Infectious Diseases / Bacteria / Viruses :

Zika Virus: Symptoms, Facts, Diagnosis

Written by Lori Smith BSN MSN CRNP

Knowledge Center

Last updated: Fri 15 July 2016

Medical News Today (MNT)

http://www.medicalnewstoday.com/articles/305163.php

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Zika virus is a mosquito-borne illness that is spread by the Aedes species of mosquito, the mosquito also responsible for the transmission of dengue and chikungunya viruses.1-3

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Unlike malaria-carrying mosquitos, this species is mostly active during the day and so barrier methods such as mosquito nets are ineffective. These mosquitos can survive in both indoor and outdoor environments.1

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The two known species responsible for Zika transmission are the Aedes albopictus, known as the Asian Tiger mosquito, and the Aedes aegypti species.2

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The Zika virus was first identified in monkeys in Uganda in 1947. The first human case, however, was detected in Nigeria in 1954, and following that there have been further outbreaks in Africa, South East Asia and the Pacific Islands.

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While the symptoms of Zika typically pass within the space of a week, there have been recent concerns about the virus are due to a potential link between Zika and birth defects such as microcephaly.

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In light of a strongly suspected causal relationship, the World Health Organization (WHO) declared that the Zika virus outbreak constituted a Public Health Emergency of International Concern on 1 February 2016.

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15 July 2016 update: The Centers for Disease Control and Prevention (CDC) has issued travel warnings for people traveling to areas and certain countries where Zika virus transmission is ongoing. These include:

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Central and South America: Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Nicaragua, Panama, Paraguay, Peru, Suriname, Venezuela Caribbean: Anguilla, Aruba, Barbados, Bonaire, Curao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Puerto Rico, Saint Barthemy, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Eustatius, Sint Maarten, Trinidad and Tobago, US Virgin Islands Oceania: American Samoa, Fiji, Kosrae (Federated States of Micronesia), Marshall Islands, New Caledonia, Papua New Guinea, Samoa, Tonga North America: Mexico Africa: Cape Verde.

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Topics Covered in This Article

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Fast facts on Zika

Where does Zika virus occur?

‘Explosion’ of Dengue fever reported in Brazil

Could Zika be transmitted by sexual intercourse?

Evidence now shows that Zika infection can pass from a mother to a fetus during pregnancy.

Recent developments on Zika transmission from MNT news

Model placenta could reveal how pathogens reach an unborn child
Scientists have made headway in understanding how pathogens, such as the Zika virus, cross from the mother to the unborn child and cause birth defects, according to research published in Science Advances.

Zika virus: CDC investigating more possible cases of sexual transmission
The Centers for Disease Control and Prevention are investigating 14 more cases of sexual transmission of Zika virus in the US. All the potential cases involve men infecting women – including some pregnant women.

Symptoms of Zika virus

Current research on Zika virus

What is microcephaly?

Microcephaly is a neurological condition where an infant’s head circumference is significantly smaller than the average size for infants of the same age. Microcephaly can lead to developmental delays in movement and speech among other complications.8

Complications of microcephaly include:

Dwarfism or short stature
Facial distortion
Mental retardation
Hyperactivity
Seizures.

Recent developments on Zika and microcephaly from MNT news

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Could Zika’s link to microcephaly be in the neural stem cells?

The Zika virus appears to infect a type of neural stem cell that is involved in the development of the brain’s cerebral cortex, says research published in Cell Stem Cell.

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Zika virus crossed placenta in two cases of microcephaly in Brazil
A new study describes how amniotic fluid retrieved in Brazil from two pregnant women carrying fetuses diagnosed with microcephaly showed evidence of Zika virus.

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Zika virus causes microcephaly and other birth defects, confirm CDC
Health officials in the US have concluded that the Zika virus causes microcephaly and other severe brain defects in babies.

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Zika Virus: Treatments and Prevention

Preventing Zika virus

Travel recommendations for areas affected by Zika virus transmission

Recent developments on Zika virus from MNT news

Evidence links Guillain-Barre Syndrome to Zika virus
Out of every 100,000 people who get Zika virus, 24 could develop Guillain-Barrsyndrome, suggests research published in The Lancet.

WHO: ‘Zika virus is a global Public Health Emergency’
After a meeting on Monday 1 February, the World Health Organization have declared that the current Zika virus outbreak constitutes a Public Health Emergency of International Concern.

Zika linked to another brain disorder in new study
Zika could be linked to an autoimmune disorder that affects the brain, according to the results of a small hospital-based study carried out in Recife in Brazil.

Cutting-edge research shows how Zika attacks fetal brains
Researchers from the Johns Hopkins University School of Medicine in Maryland recently engaged state-of-the-art biological techniques to delve into the mechanisms behind the Zika virus’ mode of attack in the fetal brain.

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The complete articles may be read at the URLs provided for each.

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