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Zika Virus

 
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Zika virus infects people through the bite of a mosquito and can cause fever, rash, joint pain, and conjunctivitis. Zika infection can cause serious or fatal birth defects in the children of pregnant women, and the virus can be transmitted sexually. Travel-related cases of Zika virus infection were confirmed in Mississippi in 2016-2017, but there have been no confirmed cases in 2019. No locally-transmitted cases have been reported in the state.

 

Symptoms

Zika virus is spread to people through the bite of infected mosquitoes. The most common symptoms of Zika virus disease are fever, rash, joint pain, and conjunctivitis (red eyes). Other commonly reported symptoms include muscle pains and headaches. Eighty percent of cases display either no symptoms, or mild symptoms lasting from several days to a week. Severe disease requiring hospitalization is uncommon. The major risk is to the unborn children of pregnant women, who can suffer severe or fatal birth defects from Zika infection. Zika damages the brain of a developing baby, causing it to be born with a much smaller head and brain (microcephaly), vision and hearing problems or other neurological disorders, or to be stillborn.

Where Zika is Found

In the last several years certain U.S. areas have been at risk for Zika transmission after residents were infected by travel to Zika-affected countries. There are currently no U.S. areas under a Zika risk warning.

Pregnant women

  • Pregnant women should not travel to areas with a Zika outbreak (as indicated by red areas on the Zika map). Before travel to other areas with risk of Zika (as indicated by purple areas on the Zika map), pregnant women should discuss their travel plans with their doctor and carefully consider the risks and possible consequences of travel to these areas
  • Zika infection can be passed from a pregnant woman to her baby, causing severe birth defects, including brain damage, hearing and vision loss, and impaired growth.
  • Pregnant women should not have sex with any man who has traveled to a Zika-affected area unless a condom is used during sex throughout her entire pregnancy

All women should take strong protective measures against mosquitoes when traveling in areas where Zika is being actively transmitted.

Sexual transmission

Because Zika can be transmitted sexually, men who have traveled to or who live in an area where Zika virus is actively being transmitted should abstain from sex with pregnant women, or use condoms properly every time they have vaginal, anal, and oral sex for the duration of the pregnancy. Men and women can transmit the virus sexually to partners of either sex. See the precautions for returning travelers below for avoiding sexual transmission of Zika.

Prevention for travelers

While there is no vaccine to prevent Zika, travelers can protect themselves by taking steps to prevent mosquito bites. When traveling to countries where Zika virus has been reported:

  • Use insect repellent.
  • Wear long sleeves and pants.
  • Stay in places with air conditioning or that use window and door screens to keep mosquitoes outside.
  • Sleep under a mosquito net if you are overseas or outside and are not able to protect yourself from mosquito bites.

Before you travel, check for countries with either Zika virus outbreaks or a risk of Zika.

Advice for returning travelers

If you are returning home after traveling in an area where Zika virus is being actively transmitted, protect others by following these steps:

  • Take special precautions to avoid mosquito bites for three weeks after you return home in order to prevent the transmission of the Zika virus to local mosquitoes. This includes using mosquito repellent whenever you are outdoors, avoiding areas with mosquitoes, dressing in long pants and sleeves, and staying indoors as much as possible. Avoid yard work around standing water that may expose you to local mosquitoes.
  • Men should not have sex of any type with a pregnant woman for the duration of the pregnancy, or use condoms consistently until the end of pregnancy.
  • If only the male partner travels to an area with a Zika outbreak or a risk of Zika, the couple should use condoms or not have sex for at least 3 months after he returns, even if he doesn’t have symptoms or at least 3 months from the start of the male partner’s symptoms or the date he was diagnosed with Zika
  • If only the female partner travels to an area with a Zika outbreak or a risk of Zika, the couple should use condoms for at least 2 months after she returns or at least 2 months from the start of her symptoms or the date she was diagnosed with Zika
  • If both partners travel to an area with a Zika outbreak or risk of Zika, the couple should use condoms or not have sex for at least 3 months after returning from an area with a risk of Zika, even if they do not have symptoms or from the start of the male partner’s symptoms or the date he was diagnosed with Zika
  • Pregnant women should not have unprotected sex with any partner who has traveled to a Zika-affected area for the duration of her entire pregnancy.
  • Pregnant women or women planning to become pregnant should talk to a healthcare provider about their travel even if they don’t feel sick or develop symptoms of the disease. If you develop a fever, rash, joint pain, or red eyes during your trip, or within two weeks after returning home, see your doctor as soon as possible.

Being tested for Zika

Your doctor or healthcare provider can arrange for Zika testing through the MSDH Public Health Laboratory.

Mosquito prevention

More information

General Zika Information

Physicians and Health Professionals

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Last reviewed on May 31, 2019

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Mississippi State Department of Health 570 East Woodrow Wilson Dr Jackson, MS 39216 866-HLTHY4U web@HealthyMS.com

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